Calspas SWIM - Cleaning the Filter

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Filtration & Cleaning Filtration & Cleaning
The lter is the part of your spa that removes big and microscopic debris from the water to
maximize your spas water clarity. Regular maintenance must be done to maximize the spas
ltering performance and heat eciency.
It is extremely important that you never run the spa without a lter, there is a possibility
that debris may be sucked into the plumbing, damaging the spa pumps and heater.
In addition to spraying the lter down with a hose to remove surface debris, the lter must be deep
cleaned every so often to dissolve scale and particles that are trapped within the pleats of the lter. Even
if the lter looks clean, scale and other particles hide deep within the lter bers restricting water ow.
If the lter is not properly cleaned this will cause ow issues within the spa heater creating a heater mal-
function. We recommend cleaning your lter at least once a month or every two weeks depending on spa
usage.
Cleaning the lter
1. Remove the lter by unscrewing the lter counterclockwise from the top of the lter, do not use exces-
sive force when removing or installing the lter.
2. Place the dirty lter into a bucket of water where the lter is completely submerged in water. Add
the desired lter cleaner of choice, on average most manufactures recommend 8 ounces of chemical
cleaner, verify the amount used on your chemical instructions.
Note: It is recommended to obtain a spare lter to use in the spa when performing maintenance on
the dirty lters. This way you can rotate the lters and extend their lifespan.
3. Soak the lter for a minimum of 24hrs
4. Spray the lter with a water hose, with careful attention between lter pleats.
5. Reinstall the lter, Do not over-tighten.
Shocking the Water
In addition to using a chemical sanitizer, you will periodically need to shock the water. Shocking the water
helps remove burned-out chemicals, bacteria, and other organic material from your spa’s water and im-
proves your sanitizer’s eectiveness.
Do not use chlorinating shock, which can damage the spas jets and pump seals. Only use Oxidizer shock.
It can be used with either bromine or chlorine sanitizers.
Add two ounces of oxidizer shock per 500 gallons once a week, after heavy bather loads, or if the water
has a strong odor. The spa must be running with all of the jets on high for 30 minutes with the cover open.
If necessary repeat the oxidizer shock in 30 minute intervals.
Cleaning the Filter
UV Light Water Treatment
In some Cal Spa models an optional UV light could be purchased to assist in sanitizing your spa. The UV
light is always operating in the background whenever the spa is powered on. This UV light assists the
disinfection of your spa by breaking down viruses and bacteria that could linger in the spas water. The UV
light works in tandem with your regular sanitation regiment.