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8
When to Clean Your Filter
Proper operation can prevent avoidable repairs and maintenance.
Use the pressure gauge to determine when to clean your filter for proper operation. The pressure reading increases
as dirt is filtered from your pool. This buildup of pressure will vary due to different bathing loads, temperature,
environmental conditions, etc.
Clean your filter when pressure reads approximately 10 psi higher than the "Original Starting Pressure" recorded in
TABLE 1, page 1 or when significant reduction in flow is noticed.
When using a variable speed pump the "Original Starting Pressure" will be dependent on the pump speed (RPM) when
recording the original operating pressure.
Cleaning the Filter Cartridges
1. Follow Opening the Filter on page 4 exactly.
2. Remove the pump strainer pot lid and clean the pump strainer
basket. Reinstall the strainer basket and lid.
3. Remove the Compression Spring and Spring Adapter from the
Top Manifold.
4. Remove the Top Manifold from the filter cartridges and lay the
manifold aside. See FIGURE 8.
5. Carefully remove each cartridge separately.
6. Using a garden hose with a straight flow nozzle, hold the nozzle
at a 45-degree angle to the cartridge and wash the entire
cartridge from top to bottom (see FIGURE 9).
Note: Pay special attention to the area between pleats.
7. For cartridges used in pools where high levels of perspiration,
suntan lotions and other oils are present:
a. Soak the cartridge for at least one hour in one of the
following:
• A commercial filter cleaner
• 1 cup trisodium phosphate (TSP) to 5 gallons of water
• 1 cup dishwasher detergent to 5 gallons of water
b. Thoroughly rinse each cartridge to remove oils and cleaning solution.
cartridge failure.
8. Wash out the inside of the filter tank and bottom manifold. Water and debris will drain
out through the open drain plug.
9. Inspect the gasket around the outer lip of the bottom plate. The gasket must be firmly
and evenly seated around the entirety of the outer lip.
10. Place the bottom manifold, cartridges and top manifold into the tank, ensuring the
spring and standpipe assembly are retained on the top manifold.
11. Ensure the O-ring is clean and seat it onto the tank bottom.
12. Follow Installing the Filter Lid and Clamp Ring on page 5 exactly.
CLEAN AND CLEAR
PLUS Cartridge Filter Installation and User' s Guide
®
Heed all manufacturers' instructions and warnings when using
polyhexamethylene biguanide sanitizers or other cartridge filter cleaner
solutions.
Failure to remove all oils and cleaning solutions before acid soaking will result in
permanent restriction of water flow through the filter and will cause premature
COMPRESSION SPRING
AND SPRING ADAPTER
TOP MANIFOLD
FIGURE 8
FIGURE 9
45°
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