How to Clean Filters on a Sundance Spa


A spa, or hot tub, is a large plastic tub that allows you to enjoy heated and sanitized water in an outdoor setting. Sundance has been manufacturing spas since 1979. Some of the features on their newer models include built-in lighting, stereos and controls that allow you to adjust your spa’s settings right from your seat. To insure the water in your spa is at its best quality, clean the filter cartridge once a week.

Things You'll Need

  • Garden hose with high pressure nozzle
  • Plastic bucket
  • Filter cleaning solution
  • Turn the power off to your spa at the main circuit breaker box by turning the spa’s breaker to the "off" position.

  • Open the lid to the filter compartment/skimmer well on top of the spa by lifting it up and out of position. Set the lid aside.

  • Locate the filter holding nut on one end of the filter cartridge, and turn it in a counterclockwise direction by hand.

  • Slide the filter cartridge toward the holding nut. Lift the cartridge out of the compartment when it clears the filter pipe on the opposite end of the cartridge.

  • Use a high pressure garden hose to rinse the filter, one pleat at a time, starting at the top of the cartridge and working your way to the bottom.

  • Place the filter cartridge back into the filter compartment, and slide it onto the filter pipe. Secure the filter by sliding one of the tabs on the cartridge under the hook that is built into the filter compartment.

  • Tighten the filter holding nut in a clockwise direction. Place the filter compartment/skimmer well lid back into the opening. Turn the circuit breaker for the spa back to the "On" position.

Tips & Warnings

  • If your filter cartridge does not come completely clean by using the above steps, fill a plastic bucket or other container with water and filter cleaning solution. Follow the directions for the cleaning solution (available at your Sundance dealer) for the proper dilution. Place the filter cartridge into the solution, and let it soak overnight to loosen stubborn dirt and deposits.
  • Do not over tighten the filter holding nut when re-installing the filter cartridge or damage to the cartridge could occur. Tighten the holding nut only until it comes in contact with the face of the filter.

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  • Photo Credit Garden Hose image by Richard McGuirk from
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