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Cartridge Filter Cleaning Instructions (Chlorine Users)
You should clean the filter element when the
pressure increases 8 PSI (pounds per square inch) above the clean
pressure. If you are using Baquacil®, Soft Swim® or some
type of biquanide system you should first clean the element with a chemical
specifically designed for this sanitizing system (see adjacent block for
cleaning process). Spa filters require more frequent chemical
cleanings than pools elements.
1. Remove the cartridge from the filter housing following the manufacture's instructions.
2. Use a garden hose with a straight
flow nozzle to wash down the filter element. Work from the top down,
holding the nozzle at a 45 degree angle, and wash all the pleats with
emphasis between pleats.
3. Rinse until all dirt and debris are
gone. At this point if the element does not need to be chemically
cleaned you can return the element back to the filter
housing. However, filter elements tend to work better if they go in
the filter housing dry so it is a good idea to have 2 filters one would be
in use while the other is being cleaned and dried.
4. If you are chemically cleaning the
filter, follow the directions on the filter cleaner manufacture's bottle or
web site for how to apply the solution.
5. Rise the cartridge again to insure the chemical cleaning solution has been removed.
6 If the filter has a coating of algae,
calcium carbonate (scale), iron (looks brown), or other minerals, soak the
cartridge in a solution of one part acid to twenty parts of water until all
bubbling stops. WARNING: Failure to remove all oils and cleaning
solutions before acid soaking will result in a permanent restriction of
water flow and cause premature cartridge failure.
7. Rinse the cartridge clean and let dry (see note in step 3).
Note: DPW does not recommend the use of
diatomaceous earth (DE) with cartridge filters. DE particles will
become trapped in the body of the media and shorten the cartridge's
life. If desired, a cellulose fiber (Zeofiber) can be used in
moderation.
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