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You’re exploring Pillar 2: Filtration—where the hot tub quietly removes debris before it can become your problem.

Pillar 2: Filtration—trap it before it becomes a problem.

Worried there’s gross stuff to scrub all the time? There isn’t — that’s the filter’s job. It physically captures hair, skin cells, leaves, and debris before they can break down in the water. Your part is an occasional rinse and a periodic deeper clean. Minutes, not hours.

What to know

  • The filter works whenever water moves — which, on a modern spa, is basically always (that’s Pillar 1 doing its job).
  • Most cloudy-water complaints trace back to a tired filter. Before blaming chemicals, ask: “when did I last clean the filter?” It’s our first diagnostic question too.
  • The care rhythm is simple: rinse it with a hose regularly, give it a chemical soak periodically, replace it when it’s worn — your spa’s manual sets the exact schedule, and more soakers means more often.
  • Not all filtration systems are equal. Some price-point and big-box-store spas rely on one filter with approximately 10–35 square feet of filtration area. Larger systems may use multiple cartridges providing 100–135 square feet or more. More filter area can capture more debris between cleanings, but accessibility, water flow, filter quality, and whether water can bypass the filters matter too.
  • Look for generous filter area and no-bypass designs that filter 100% of the water; Artesian Elite adds a microfilter on its WhisperPure circulation system that catches finer particles than standard filtration alone.

When you shop, ask to see the filter compartment. How many filters are there? What is their total square footage? Is all circulated water filtered, or can some bypass the cartridges? Are the filters easy to remove and clean? Thirty seconds looking inside can reveal more about the ownership experience than a brochure does.

How often do hot tub filters need cleaning?
Follow your spa’s manual — as a rule of thumb, a hose-down rinse every few weeks, a deeper chemical soak every few months, and replacement when the pleats wear. Heavy use moves all of that up; light use stretches it out.
How do I know my hot tub filter is worn out?
Pleats that stay dingy after a proper soak, fraying, flattened pleats, or a spa that keeps going cloudy right after cleaning — any of those means the cartridge is done. Bring it in; we’ll match the right replacement on the spot.
Why is my hot tub water cloudy?
Start with the filter: pull it, rinse it, and see if the water clears over a day. If it doesn’t, bring a water sample in — our free 8-parameter test finds what a cloudy eyeball can’t.

The debris is trapped. Now choose how your hot tub will maintain a safe, steady sanitizer level.

Continue to Pillar 3: Sanitization →

Done exploring filtration and ready to find an easier-to-care-for hot tub? Let’s build your custom spa setup plan.

Questions? Call or text (763) 200-7727.

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