Operating instructions

Changing/Cleaning Filters

We strongly recommend that you clean the filter every one to three weeks depending on how often your spa

is used. Just because a filter is dirty does not mean it needs to be replaced. Filters that are cleaned regularly

can last up to 12 months.

To determine whether your filter needs replacing look within the pleats of the filter inspecting for any build up

of grime and dirt particles after cleaning. If dirt particles remain the filter should be replaced. Filters are not

designed to last more than 12 months. We recommend using ThermoSpas Filter Clean to clean the filter(s) in

your spa.

Note: Some ThermoSpas hot tubs use two or more filters. Refer to the “Special Operating Instructions” sheet for your spa model for

specific information about the type of filter system it has and how to access the filter(s).

Step 1: Refer to your spa’s “Special Operating Instructions” sheet for information on how to remove the

filter(s) for cleaning.

Step 2: Place the filter(s) in a bucket and fill with water.

Step 3: Add 8 oz of ThermoSpas Filter Clean to the bucket of water. If there are excessive mineral deposits

on the filter(s), you may need to double the amount to 16 oz of Filter Clean.

Step 4: Mix the solution in the bucket by moving the filter(s) up and down several times.

Step 5: Allow the filter(s) to soak for 12-24 hours.

Step 6: After soaking, remove the filter(s) from the solution and rinse out any remaining debris using a

garden hose or pressure sprayer. Allow filters to air dry naturally.

Tip: You may want to have extra filter cartridges on hand. This will help you prolong the life or your

spa by allowing ample time for dirty cartridge(s) to soak. It will also enable you to enjoy your spa

while the dirty cartridge(s) are going through the cleaning process. Filters should be completely air

dried before returning to the hot tub. Damp filters carry bacteria on them that could contaminate

your spa water.

Drain & Refill

Drain and refill the spa at least every 4 months (6 to 12 months w/ ThermOzone). It is recommended that the

plumbing lines be flushed and cleaned each time the spa is drained.

Step 1: Set the temperature on the digital control panel to its lowest temperature setting.

Step 2: Turn the spa circuit breaker off.

Step 3: Drain your spa. The ideal way to drain a spa is with a submersible pump. If you don’t have a

submersible pump, you can attach a garden hose to the hose spigot which is located coiled

behind the spa pac. Once the hose is attached, open the hose spigot. This will enable the water

in the spa to gravity drain.

Step 4: Use a foam sponge, mop, or wet/dry vacuum to remove any remaining water left in the bottom of

the spa footwell or in seating areas.

Step 5: Completely dry the shell surface with a soft, clean cloth.

Step 6: Clean the shell surface of any debris or mildew using ThermoGloss and Multi Purpose Cleaner

Tip: This is also an excellent time to change and clean the spa’s filter(s)

Step 7: You are now ready to refill the spa.

Spa Maintenance

Close-up of Spigot