Hot Tub Questions, Answered Honestly | MinnSpas

Most hot tub questions don’t get straight answers. Dealers dodge the hard ones. Big-box sites give you specs without context. We’ve been doing this for over 34 years in Minnesota, and we’d rather answer the question you’re actually asking — even when the honest answer is “it depends.” Browse by category below, or jump straight to the questions people ask us most.

Jump to a category: Buying & Planning · Cost & Running Costs · Installation & Access · Minnesota Ownership · Water Care · Service & Repairs · Swim Spas · Comparisons


🛁 Buying & Planning

The sticker price is only part of the number. A realistic total budget for a 240V hot tub in Minnesota includes: the spa itself, a reinforced concrete pad or engineered deck surface ($500–$2,000+ depending on what’s there), a dedicated 240V electrical circuit installed by a licensed electrician ($400–$800 depending on panel distance), delivery and placement ($300–$600, more if crane access is required), a quality cover (often included, but worth verifying), and startup water care chemicals ($75–$150 to get the water right on day one). On a $9,000 spa, expect $1,500–$3,500 in additional setup costs depending on your site. That’s not a gotcha — it’s just the full picture most dealers don’t walk you through before you sign. MinnSpas reviews all five cost categories with every customer before delivery is scheduled.
Start with honest use patterns, not wishful thinking. Who will actually use it — and how often? Most homeowners who buy a 7-person spa use it as a couple 90% of the time. That’s not wrong, but it does mean you’re heating and maintaining a larger volume of water daily for two people. The most common regret we hear is going too small — specifically, choosing a 2-person spa when a 4-person would have given a couple much more room to stretch out. The second most common regret is choosing a spa primarily for seating count rather than jet placement and seating configuration for the actual users. A practical starting point: add one seat to your realistic regular user count. If you and your spouse will use it nightly, a 4-person gives you room to move. If you genuinely host groups, a 6-person makes sense. Use the Find My Hot Tub tool to filter by seating capacity alongside other specs.
No — and this is one of the most misunderstood specs in the industry. Jet count is a marketing number. What actually determines massage quality is jet placement, jet size, and jet style. A spa with 40 well-placed jets targeting your lower back, shoulders, calves, and feet will outperform a 115-jet spa where the pump pressure is divided across too many jets to deliver meaningful force at any one point. When you divide pump output across 108 jets, each individual jet is weaker. More jets can mean a softer massage, not a stronger one. The question to ask is: does this spa have the right jets in the right positions for how your body needs to be massaged? Jet zone targeting, seat-by-seat pressure control, and the ability to adjust individual jets matter far more than the total count. This is also why Softub delivers an effective massage despite a simpler design — without molded fixed seating, you can position yourself to put the jets exactly where you need them, which no assigned-seat acrylic spa can match.
A lounge seat is a partially or fully reclined position that runs jets along your back, hamstrings, calves, and feet simultaneously — the layout most buyers picture when they think of hydrotherapy. It’s the best configuration for full-body muscle relief and therapeutic use. Open seating (also called bench seating) positions users upright facing each other or toward the center. It provides more legroom, works better for taller users (over 6’2″), and is more comfortable for conversation and social use. It also means more usable seating — a lounge seat takes up the space of roughly 1.5 upright seats. The practical question: is this primarily for therapy and recovery, or for relaxing and socializing? If therapy is the priority, prioritize a full lounge. If legroom or user height is a factor, open seating or a single-lounge-plus-upright configuration may serve you better. Browse by Lounge Seating or Open Seating to compare.
110V (plug-and-play) spas run on a standard household outlet — no electrician required, no dedicated circuit. They’re practical for renters, cabins, covered porches, and temporary installations. The trade-off: they heat more slowly, can’t run jets and heater simultaneously at full power, and in Minnesota winters they struggle to maintain temperature efficiently. Monthly operating costs are higher relative to their size. 240V spas require a dedicated circuit installed by a licensed electrician — typically a 50-amp or 60-amp GFCI-protected line. The upfront electrical cost ($400–$800) is a one-time expense. In return, you get faster heat-up, full jet pressure, and a heating system that can maintain temperature through a January cold snap without running continuously. For year-round Minnesota use, 240V is the right choice for most homeowners. Some models offer both configurations — they ship as plug-and-play and can be converted to 240V later. The South Seas 519P is one example. Browse plug-and-play models here.
It depends on the dealer. MinnSpas has a showroom in Apple Valley where you can see and sit in models in person — but we don’t maintain filled, heated display spas for wet testing. What we can do is walk you through every seat in the showroom models, talk through jet placement and zone targeting for your specific needs, and compare configurations side by side. If a wet test is important to your decision, call ahead at (763) 200-SPAS — we can discuss what’s currently available and what a consultation visit looks like. The more useful exercise is often a detailed walkthrough of seating layout and jet targeting before you ever get wet.
The honest answer: the best time to buy is when you’re ready to plan the installation properly — not when a sale pressures you into moving fast. That said, there are real seasonal patterns. Late summer and early fall (August–October) is when many dealers run end-of-season promotions to clear floor models before new inventory arrives. Late winter (February–March) is another window when dealers are motivated. Spring and summer bring higher demand and longer lead times. For Minnesota specifically, buying in fall or early winter gives you something most buyers miss: the ability to plan your electrical and pad work before the ground freezes, so the spa is ready to enjoy all winter rather than sitting in a driveway waiting for spring installation.

💡 Cost & Running Costs

A well-insulated 240V hot tub in Minnesota typically costs $30–$60 per month to operate, depending on usage frequency, jet run time, water temperature setting, wind exposure, and your local electricity rate. The variables that matter most: insulation quality (full-foam vs. partial), cover R-value, and whether the spa is in a wind-exposed location. A cheap cover on a windy patio can double your heating cost compared to the same spa in a sheltered spot with a quality cover. Plug-and-play (110V) models cost less per hour of heating cycle but lose temperature faster and reheat more slowly — net monthly cost is often similar to or higher than a comparable 240V model over a Minnesota winter. If operating cost is a priority for you, we’re happy to compare insulation specs and historical efficiency across specific models when you visit the showroom.
For Minnesota year-round use, keeping it at temperature continuously is almost always cheaper than letting it cool down and reheating. The reason is thermodynamics — it takes significantly more energy to reheat 400 gallons of water from 60°F to 102°F than to maintain 102°F against steady heat loss. The other reason not to let it cool in winter: putting your circulation pump on a timer or letting the water drop near freezing is one of the most common causes of freeze damage in Minnesota. The circulation pump running continuously is what keeps water moving through the lines and prevents ice formation in the plumbing. This is not optional in a Minnesota winter. Set it, leave it running, and adjust your temperature setting (not the pump schedule) if you want to reduce costs during extended periods away from home.
This is a real phenomenon and worth understanding before you buy. The most common reasons: Water care confusion. Nobody explained the chemistry at point of sale. The owner tests the water occasionally, it turns green or cloudy, they treat it with the wrong product, it gets worse, they give up. This is 100% preventable with a proper startup walkthrough and a simple weekly routine. The pump is “always running” panic. New owners hear the circulation pump and assume it’s a malfunction. They put it on a timer to “save money,” the water stops circulating, and in Minnesota winter the lines freeze. A $15,000 spa becomes a $3,000 repair. Poor installation planning. The spa was bought at an expo, delivered without a proper site review, placed on an inadequate surface or in a location with no wind protection, and the operating cost was three times what the owner expected. No local service after the sale. The spa was bought from a traveling show or out-of-state dealer. When something goes wrong in year two, there’s no one to call. The repair cost seems easier to avoid by just draining it. All four are planning failures, not product failures. The spa itself is rarely the problem.
The control board (also called the topside controller or circuit board) and the pump motor are the two most significant repair costs. A main control board on a premium spa can run $400–$900 for the part alone. A pump motor replacement typically runs $300–$600 in parts plus labor. The heater element is a common failure point but relatively inexpensive to replace ($50–$150 for the element). Jets and jet internals are wear items that cost $15–$60 each. The most expensive failure by far is freeze damage — burst plumbing, cracked manifolds, and damaged pumps caused by water freezing inside the lines. A full freeze repair on a premium spa can exceed $2,000–$3,500. This is why circulation and freeze protection are not optional in Minnesota. Buying from a local authorized dealer means access to genuine manufacturer parts. Buying from an expo or big-box retailer often means sourcing aftermarket parts when something fails — which affects both availability and warranty coverage.
A well-built, properly maintained acrylic hot tub from a reputable manufacturer should last 15–20 years. Premium brands with quality shell construction, full-foam insulation, and composite framing (no wood to rot) often exceed this. Entry-level and big-box hot tubs typically last 5–10 years before major component failures make continued repair uneconomical. The difference is usually shell construction, pump quality, and the cabinet’s ability to resist Minnesota’s freeze-thaw cycles. Maintenance matters as much as build quality. A premium spa that’s poorly maintained (bad water chemistry eroding shell and jets, cover neglect leading to water-logged insulation, freeze damage from improper winter care) can fail in under 10 years. A mid-tier spa that’s properly maintained and serviced can last well beyond its expected lifespan.

🚚 Installation, Delivery & Access

This is the category almost no dealer answers in detail. These are real questions from real homeowners — and they matter more than jet count.

Four things need to be ready on delivery day: 1. A clear access path. The delivery crew needs to move the spa from the truck to its final location. Most spas are delivered on their side on a dolly, making them taller and narrower than their footprint. You need roughly 36–40 inches of clear width from the street to the installation site — through gates, along fence lines, around corners. Height clearance matters too (typically 7–8 feet when the spa is on its side). 2. A solid, level surface. A 4-inch reinforced concrete pad is the most reliable and lowest-maintenance option. Reinforced decking (properly engineered for the load), crushed gravel compacted to 4 inches, or interlocking spa pads are also acceptable. The surface must be level and capable of supporting 3,000–5,000 lbs of filled weight. An existing deck needs to be evaluated for load capacity before a spa is placed on it. 3. Electrical readiness. For 240V models, the licensed electrician needs to have completed the circuit installation before or on delivery day. The spa cannot be started without power, and it should not sit filled and unpowered in Minnesota winter. 4. A water source nearby. A garden hose to fill the spa. Hot tubs do not require plumbing connections — just a hose. Fill time for a 400-gallon spa is typically 45–90 minutes. MinnSpas reviews all four areas before every delivery is scheduled. We’d rather catch a site issue two weeks out than on delivery morning.
This is one of the most common access questions we get, and the answer is almost always: there’s a solution. Here’s how access problems are typically resolved, in order of complexity: Remove a fence panel or gate. Most wood or vinyl fence panels can be temporarily removed in 20–30 minutes. If your gate opening is 32 inches but a panel removal gets you to 48 inches, that’s often the simplest fix. Route through a neighbor’s yard. If the street side access is blocked but a neighboring fence line gives you a clear path, a quick conversation with a neighbor can open the route. It’s more common than you’d think. On-side delivery through a 34″ or 36″ door opening. Several models in our lineup are specifically engineered to pass through a standard doorway on their side. If your access point is a door rather than a gate, filter by doorway fit here. Crane delivery. For truly blocked access — privacy fences, no side yard, tight urban lots — a crane lifts the spa over the fence or house and lowers it into position. MinnSpas coordinates crane delivery through All State Crane for situations that need it. It adds cost ($500–$1,500 depending on the lift) but it’s a reliable solution when nothing else works. If you’re unsure about your access, call or text us at (763) 200-SPAS before you buy. We can often assess your situation from a few photos.
Some can — but you have to match the model to the opening. Standard interior door openings in US homes are typically 32–36 inches wide. Several compact hot tubs are specifically engineered to pass through these openings on their side, making it possible to place a spa in a sunroom, enclosed porch, garage, or basement with standard door access. The key measurement is the spa’s height when standing on its side — not its footprint. A spa that’s 30 inches tall when standing upright becomes 30 inches wide when tipped on its side for delivery. If that’s narrower than your door opening, it can potentially pass through. MinnSpas carries models rated for both 34-inch and 36-inch door clearance. Browse 34-inch doorway-fit models or 36-inch doorway-fit models. Always verify the specific model dimensions and your actual door opening before ordering — door frames, trim, and thresholds all affect the real clearance.
Yes — and in Minnesota, a garage installation has real advantages. Wind protection alone can meaningfully reduce your monthly operating cost. A garage also means year-round access without walking across a snow-covered patio at -15°F. What to plan for: Floor load capacity. A filled 4-person hot tub weighs 2,800–3,500 lbs. Standard residential garage slabs are typically 4 inches thick and designed for vehicle weight — which is comparable, but worth verifying for older construction. Ventilation. Hot tubs produce significant humidity. A garage installation needs adequate ventilation to prevent moisture damage to the structure, stored items, and the spa cabinet itself. A ventilation plan is not optional. Electrical. The 240V circuit needs to be run inside the garage to a disconnect panel within line of sight of the spa. This is standard work for any licensed electrician familiar with spa installations. Drainage. Plan for where the water goes when you drain and refill every 3–4 months. A floor drain or exterior hose path is needed. Access. The spa still needs to get into the garage — typically through the garage door opening, which is usually wide enough for most models without issue.
Technically yes — but it requires careful planning and is one of the more complex installations we encounter. The considerations: Access for delivery. Getting a 700-lb spa down a standard basement staircase is not realistic. Most basement installations require either a walk-out access, a bulkhead entrance wide enough for the spa on its side, or in rare cases, a crane placement through a window opening or a cut in the foundation (done before the spa arrives, obviously). This needs to be evaluated before you buy the spa, not after. Moisture and ventilation. A spa in a finished basement will produce significant humidity. HVAC planning, dehumidification, and proper air circulation need to be part of the project from the start. Moisture damage to a finished basement is expensive. Floor load. Basement concrete slabs are generally rated for the load, but the area directly around floor drains and in older construction should be evaluated. Drainage. Drain access for refills is easier in a basement (floor drain) but needs to be confirmed. If you’re seriously considering a basement installation, call us before you do anything else. We can help you think through the access problem specifically — that’s usually the deciding factor.
Yes, slopes are common and manageable — with the right preparation. A hot tub must sit on a level surface, so a sloped yard means either a level concrete pad poured to grade (with the low side built up), a retaining wall and pad combination, or a properly engineered deck section that creates a level platform. For delivery on a slope, the practical concern is moving the spa safely from the truck to the pad. Steep grades make dolly delivery dangerous — the spa’s weight can become uncontrollable on a decline. For significant slopes, crane delivery is often the safer and more practical option, regardless of whether access is otherwise clear. If your yard has a slope, send us a few photos of the proposed location. We can often give you a realistic assessment of what the installation requires before you commit to a model.
Plan for at least 18–24 inches of clear access on all four sides of the spa after placement. This isn’t for aesthetics — it’s for service access. Every hot tub has panels that need to be removed for filter access, pump inspection, and repairs. If you box a spa in with decking, landscaping, or fencing with no service clearance, a future service call becomes significantly more complicated and expensive. If you’re building a deck surround, plan for removable deck sections or access hatches on at least two sides. This is a detail that’s easy to get right during the build and very expensive to fix after the fact. Cover clearance matters too. A cover lifter needs 18–36 inches of clearance on the side where the cover folds back. Placing a spa against a wall or fence without accounting for cover operation is a common planning mistake.
Maybe — and “maybe” is the honest answer until someone looks at your specific deck. A filled 4-person hot tub weighs 2,800–3,500 lbs distributed across the spa’s footprint (roughly 50–65 square feet). That’s a concentrated load that most residential decks were not originally engineered to handle. Deck construction that can typically support a spa: 2×10 joists on 12-inch centers, spanning no more than 8 feet, with proper beam and post sizing. Older decks with 2×8 joists on 16-inch centers may be undersized depending on span and age. The safe approach: have a licensed contractor evaluate your specific deck before scheduling delivery. This is not an area to estimate or assume. A deck failure under a filled spa is a catastrophic and costly event. A new 4-inch reinforced concrete pad is almost always the simpler and less expensive long-term solution compared to deck reinforcement — and it eliminates the question entirely.

❄️ Minnesota Ownership

Yes — and many Minnesota owners consider winter the best time to use a hot tub. Stepping into 102°F water when it’s -10°F outside is a genuinely different experience than summer use. It’s also when the therapeutic value of regular soaking tends to increase, particularly for joint pain and muscle recovery. What a Minnesota winter requires from your spa: full-foam insulation (not partial-fill or dead-air systems), a quality cover with a high R-value, composite framing that won’t absorb moisture through freeze-thaw cycles, and a 240V heating system that can maintain temperature continuously. All Artesian Spas models MinnSpas carries are built to these specifications. What a Minnesota winter requires from you: keep the spa running. Don’t put the circulation pump on a timer. Don’t let the temperature drop below 95°F for extended periods. Keep the cover on when not in use. Check the cover for ice accumulation after heavy snowfall — excessive cover weight can damage the cover frame and increase heat loss.
Yes — and this is one of the most common new owner concerns we hear. The circulation pump (a low-speed, low-amperage pump separate from the jet pumps) is designed to run continuously on most spa models. It does two things: it circulates water through the filter continuously, and it keeps water moving through the heater so the temperature stays consistent. Putting the circulation pump on a timer to “save money” is one of the most common mistakes Minnesota hot tub owners make — and one of the most expensive. When the pump stops, water stops moving through the lines. In sub-zero temperatures, that standing water in the plumbing can freeze in hours. Burst pipes, cracked manifolds, damaged pump heads. Repairs can run $2,000–$3,500. The circulation pump uses very little power — typically 50–200 watts, comparable to a few light bulbs. Leave it running.
This is more common than most dealers will tell you — especially in suburban and rural Minnesota where field mice are looking for warm, insulated spaces in fall and winter. A foam-insulated hot tub cabinet is essentially ideal mouse habitat. To remove them: Snap traps placed inside the cabinet near the pumps, or glue traps baited with peanut butter. Check and reset traps every few days. Remove any nesting material you find. To prevent them: Peppermint oil — soak cotton balls in concentrated peppermint extract and place them near the pump and heater compartment. Mice genuinely avoid strong peppermint. Replace the cotton balls monthly. Bounce dryer sheets placed inside the cabinet are a low-tech repellent that many owners swear by. The real concern: Rodents chew wiring. If you’ve had a mouse problem and your spa starts showing electrical faults or erratic behavior, have a technician inspect the wiring harness before assuming it’s a component failure. Chewed wiring is a fire hazard and a repair that insurance may cover depending on your homeowner’s policy. If you’re not sure where they’re getting in, look for gaps in the cabinet panels near the ground — a mouse can fit through an opening the size of a dime.
A covered, properly maintained hot tub typically loses 1–2 inches of water per month to evaporation. That’s roughly 20–50 gallons depending on spa size, cover condition, temperature differential, and how often the spa is used without the cover. If you’re losing more than that — especially if you notice rapid drops after each use — check your cover seal. A damaged or waterlogged cover allows significantly more evaporative loss. A quality cover with an intact vapor barrier is worth maintaining. Top off the water as needed with a garden hose. Minnesota municipal water and well water both work fine, though well water with high iron content can affect your water chemistry and occasionally causes the brown-water-on-fill issue some owners experience. If you have iron-rich well water, a pre-fill hose filter is a worthwhile investment.
This is almost always the wrong choice for Minnesota. A drained spa in winter is a spa at risk. Any residual water in the plumbing lines, pump cavities, and jet manifolds will freeze — and unlike a filled, running spa where the heater and circulation prevent freezing, a drained spa has no protection against a cold snap. A properly winterized spa (blown-out lines, antifreeze in the plumbing, all water removed) can sit safely through a Minnesota winter. But this is a technical process that requires the right equipment — a wet/dry shop vac or compressor to blow every line clear, non-toxic antifreeze in the correct amounts, and proper shutdown of all systems. The better answer for most homeowners: keep it running. A well-insulated spa in good condition costs $30–$50/month to maintain through winter even without regular use. That’s a reasonable storage cost compared to the risk of freeze damage from an improperly winterized system. If you’re going to be away for more than 2–3 weeks in winter, call us before you leave. We can walk you through the right approach for your specific spa.

🧪 Water Care

The most sustainable water care routine is the one you’ll actually do consistently. For most homeowners, that’s a 10-minute weekly routine: Weekly: Test the water (strips or a digital tester), adjust pH and alkalinity if needed, add sanitizer (chlorine or bromine to target range), rinse the filter with a garden hose. Monthly: Shock the water (oxidize combined chlorine/organics), inspect the cover seal. Every 3–4 months: Drain and refill. This is the reset that prevents total dissolved solids from building up past the point where chemicals can keep the water balanced. That’s it. The owners who struggle with water care are usually either skipping the weekly test (chasing problems after they develop) or trying to maintain water that’s past its useful life (going 6+ months without a water change). We carry water care supplies and offer free water testing at our Apple Valley showroom. Bring in a water sample and we’ll tell you exactly what it needs.
All three work. The right choice depends on your priorities: Chlorine is the most common, least expensive, and most effective at rapid sanitization. It dissipates faster, which means you add it more frequently — but also means it clears the water faster after a shock treatment. It can cause slight skin and eye irritation at high levels. Bromine is more stable in warm water (important for a hot tub that sits at 100°F+), less irritating to skin and eyes at equivalent sanitization levels, and doesn’t dissipate as quickly. It costs slightly more than chlorine and can’t be “shocked out” — once you’re on bromine, you stay on bromine. Salt systems (including the Frog @ease and similar systems) generate chlorine or bromine from a salt-based mineral cartridge. They’re lower-maintenance and gentler on skin. The trade-off is upfront cost for the system and periodic cartridge replacement. They don’t eliminate the need for water testing and adjustment — they just reduce the frequency of manual chemical additions. For Minnesota year-round use, any of the three works well in a properly insulated spa. Most MinnSpas customers start with chlorine or a Frog-style mineral system. We’ll walk you through whichever you choose at startup.
Cloudy water has a few common causes, and they require different fixes: Low sanitizer. The most common cause. Test your chlorine or bromine level — if it’s below the target range, add sanitizer and give it an hour to circulate. pH out of range. Water that’s too alkaline (high pH) can look milky-white and feel slippery. Test and adjust pH to 7.4–7.6. Dirty filter. A clogged filter can’t remove fine particles from the water. Rinse the filter with a garden hose, or replace it if it’s been in service more than 12 months. High total dissolved solids (TDS). If the water has been in the spa for more than 4 months and has gone through multiple chemical treatments, TDS builds up to the point where the water can’t stay clear regardless of what you add. The fix is a drain and refill — there’s no chemical shortcut past this one. Body oils and lotions. Organic load from bathers builds up faster than sanitizer can process it. A weekly shock treatment (non-chlorine oxidizer) breaks down these compounds and is the best preventive measure. If you’ve tried all of the above and the water is still cloudy, bring a sample to our showroom for free testing — sometimes the issue is something specific to your water source.
Every 3–4 months as a general rule, adjusted based on usage intensity. The underlying reason: every time you add chemicals, they leave behind dissolved solids that don’t evaporate. Over time, TDS (total dissolved solids) builds up to the point where the water becomes increasingly difficult to balance — you’re adding more and more product to maintain the same result. A drain and refill is the only reset. Heavy users (daily use, multiple people) may need to drain every 2–3 months. Light users (weekly, 1–2 people) can sometimes go 4–5 months between water changes. The water itself will tell you — when it starts requiring significantly more chemical to maintain balance than it used to, it’s time. A 400-gallon drain and refill takes about 30 minutes to drain, 45–90 minutes to refill, and about an hour to re-balance the chemistry on fresh water. Budget for the chemicals to start fresh: alkalinity adjustment, pH adjustment, and a full dose of sanitizer for the new fill.

🔧 Service & Repairs

A tripping breaker is one of the most common service calls we receive. The causes, roughly in order of frequency: A failing heater element. When a heater element starts to fail, it can draw excess amperage or develop a ground fault — both trip the GFCI breaker. This is the most common cause and usually a straightforward repair. A pump motor drawing high amperage. Worn bearings or a failing pump motor can pull more current than the circuit is sized for, tripping the breaker under load. Often happens intermittently before becoming consistent. Water intrusion into the control box or a connection point. A wet connection or corroded terminal can cause a ground fault that trips the GFCI. More common after heavy rain or in poorly sealed cabinets. Undersized circuit. Some older 50-amp installations struggle with newer spas that require 60 amps. This is an electrical issue, not a spa issue — and it’s worth checking if the tripping started after a replacement spa was installed on existing wiring. A weak breaker. GFCI breakers degrade over time and can start tripping at normal loads. If your electrician and a spa technician have ruled out spa-side causes, the breaker itself may be the culprit. Don’t reset a tripping breaker more than once or twice without investigating. Repeated resets on an actual fault condition can cause component damage. Contact MinnSpas service for a diagnostic visit.
Before calling a technician, work through this sequence: Check the filter. A clogged filter restricts flow through the heater. Remove the filter and run the spa without it for 15 minutes — if the temperature starts climbing, the filter is the problem. Clean or replace it. Check the water level. Water should cover the filter intake by several inches. Low water level causes flow errors that prevent the heater from activating. Check for an error code on the control panel. FLO, LF, HH, or similar codes indicate the heater has shut down for a specific reason. Look up your spa’s error code in the owner’s manual or call us — the code usually points directly to the cause. Check whether jets are running. If the jets run but the heater doesn’t, the issue is likely in the heater circuit or a temperature sensor. If neither the jets nor heater are functioning, the problem may be in the control board or power supply. Check the breaker. A tripped breaker is obvious, but a breaker that’s tripped to a midpoint (not fully off, not fully on) can be easy to miss. Reset it fully off then back on. If none of these resolve it, a technician visit is the next step. MinnSpas services all brands we sell and provides out-of-warranty diagnostics for other brands throughout the Twin Cities. Schedule service here.
LF (Low Flow) and FLO are flow-related fault codes indicating the spa’s flow sensor isn’t detecting adequate water movement through the heater. The heater shuts down as a safety precaution to prevent dry-fire damage. Common causes: clogged filter (most common), low water level, an air lock in the pump (water isn’t moving even though the pump is running), a failing circulation pump, or a dirty or faulty flow sensor. Start by removing and rinsing the filter, then checking the water level. Run the spa without the filter for a few minutes to see if the code clears. If it does, replace the filter. If the code persists without a filter, the issue is likely upstream — in the pump or the sensor itself. For new spas, an air lock in the circulation pump is common after first fill and can usually be resolved by loosening a union fitting slightly until water (not air) flows out, then re-tightening. Your owner’s manual will have the specific procedure for your model.
The signs: water level dropping faster than normal evaporation (more than 1–2 inches per week without heavy use), wet or damp ground under or around the spa cabinet, visible water staining on the cabinet panels, or error codes related to low flow. First, confirm it’s actually a leak and not evaporation from a damaged cover seal. Mark the water level with tape, cover the spa, and check it after 24 hours of no use. If the level drops significantly with the cover on and no one using it, it’s a leak. Where leaks occur most often: jet fittings (the most common — they vibrate loose over time), union fittings on pump connections, the heater manifold, and the drain fitting. Less common: actual shell cracks, which are rare in quality acrylic construction. Jet fitting leaks are often a DIY repair — the jet body can be tightened or the gasket replaced without emptying the spa. Pump and heater fitting leaks require a technician. Contact MinnSpas service if you’re seeing signs of a leak and aren’t sure where it’s coming from.

🏊 Swim Spas

The honest answer starts with five questions we ask every swim spa buyer in the showroom. Rate each of these on a scale of 1–10 by how important it is to you: 1. Swimming laps or serious swim training 2. Fun as a pool — family use, kids, recreational water time 3. Hot tub features — jets, seating, hydrotherapy 4. Fitness and resistance exercise (walking, jogging, aquatic training) 5. Year-round use in Minnesota If your highest scores are in swimming and fitness (1 and 4), a swim spa is the right direction. If hot tub features and year-round relaxation dominate (3 and 5), a premium hot tub delivers more of what you want at lower cost and maintenance. If family fun and pool-like use are the priority (2), a swim spa fills that gap that a hot tub can’t. Most buyers find their answers cluster around two or three of these. That clustering tells you which product fits. Explore TidalFit Swim Spas →
A swim spa generates a swimming current using one of two approaches: propeller-based systems or jet-based systems. Propeller systems (like TidalFit’s EP series) use an impeller or turbine to generate a smooth, wide current across the full swim zone width. The result is a more natural swimming experience — the current feels like open water rather than a jet stream. This is the preferred system for serious lap swimmers and triathletes. Jet-based systems use multiple high-volume jets pointed in the same direction to create current. The current is effective but can feel more turbulent and concentrated compared to a propeller system. Current adjustability matters as much as the system type. A good swim spa lets you dial the current from a gentle walk-against-resistance up to a competitive training pace. TidalFit models offer variable current speed that accommodates everything from aquatic walking to serious swim training.
For most Minnesota families, yes — and it does several things an inground pool can’t. A swim spa operates year-round. An inground pool in Minnesota is usable approximately 10–12 weeks per year before the cost of heating becomes prohibitive and the weather makes it impractical. A swim spa also installs above ground with no excavation, no permit process comparable to inground pool construction, no backfill or landscaping disruption, and a fraction of the installation timeline. Total installed cost for a premium swim spa is significantly less than an inground pool, and the ongoing maintenance is substantially simpler. What a swim spa doesn’t replace: the open-water feel of a full-size pool for lap swimming at full stroke, a gathering space for large summer parties, and the aesthetic of a built-in pool as a landscape feature. For families who want year-round water use, fitness, family fun, and hydrotherapy in one unit — a swim spa is a stronger value proposition than either a hot tub alone or an inground pool in Minnesota’s climate.

⚖️ Comparisons

Costco sells hot tubs manufactured by companies that build specifically for the big-box channel — meaning the products are engineered to hit a price point rather than a performance standard. The cost savings come from somewhere: thinner acrylic shells, less insulation, lower-grade pump and motor components, and simpler jet configurations. That’s not always wrong for the buyer. If you want an entry-level spa, understand the trade-offs, and don’t expect it to last 15 years in a Minnesota winter, a Costco spa at $3,000–$5,000 may be exactly what you need. What Costco can’t provide: local service after the sale, warranty labor from someone 15 minutes away, help with electrical planning, site assessment, or water care training on day one. When something goes wrong — and with any complex electrical appliance, something eventually does — you’re on your own or sourcing an independent technician who may not have parts or familiarity with that brand. The real comparison isn’t sticker price. It’s total cost of ownership over 5–10 years, including operating cost, repair cost, and the value of having a service relationship with a local dealer.
Hot tub expos and State Fair events are a legitimate and well-established sales channel in this industry. They offer a large selection in one place, aggressive show pricing, an exciting atmosphere, easy brand comparisons, and financing specials that can be genuinely compelling. If you know exactly what you want and are ready to buy on the spot, that environment works. MinnSpas is structured differently. We operate as a local specialty dealer with a year-round showroom, and our focus is setup planning — not just closing a sale. Before you buy, we work through delivery access, electrical requirements, patio or deck considerations, winter setup, water care, and long-term ownership. After delivery, we’re available for service, warranty support, water testing, and parts — because we’re 15 minutes away, not a traveling roadshow that’s moved on to the next city. The question isn’t which buying experience is better in the abstract. It’s which one fits your situation. If you want a transaction, an expo can work. If you want a plan — and want someone to call in year three when the heater element goes — a local dealer is built for that.
Start with use case, not size or price. A hot tub is optimized for hydrotherapy, relaxation, and social soaking. A swim spa adds a swim zone and fitness capability but requires more space (12–19 feet long vs. 6–8 feet), costs more to purchase and operate, and requires more substantial site preparation. If your primary goals are muscle recovery, stress relief, and family relaxation — a hot tub delivers more of that per dollar than a swim spa. If you want to train, exercise, or create a pool alternative for kids and family water time, a swim spa is the right tool. The 1–10 framework we use in the showroom: rate Swimming Laps/Training, Family/Pool Fun, Hot Tub Features, Fitness/Exercise, and Year-Round Use. Where your scores cluster tells you which product fits. Most buyers know the answer within two minutes of working through it.

Still have a question?

If your question isn’t answered here, call or text us at (763) 200-SPAS, stop by the showroom at 14608 Felton Ct #109, Apple Valley, MN, or fill out the setup plan form below. We answer real questions — including the ones that are inconvenient for a dealer to answer.

Start My Spa Setup Plan →

Scroll to Top