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10
Acid Soaking the Filter Cartridges
After an extended period of operation, it may be necessary to soak the filter cartridges in an acid solution. Acid soaking
will remove algae, calcium carbonate, iron and other mineral build-ups from the cartridges. If not removed, these
mineral deposits can lead to the restriction of water flow through the FullFloXF
impede efficient operation of the equipment.
Muriatic acid is corrosive and can lead to inflammation or burns to body tissue.
ALWAYS wear rubber gloves, safety glasses and an N-95 dust mask when handling acid to prevent serious bodily injury.
To prevent degradation of the acid by UV light, store muriatic acid in an opaque container and away from direct sunlight.
REQUIRED TOOLS:
• Large Plastic Container
• Garden Hose with a Straight Flow Nozzle
• Muriatic Acid (stored in opaque container)
• Rubber Gloves
• Safety Glasses
• N-95 Dust Mask
PROCEDURE:
1. Remove all oils and cleaning solutions from the cartridges.
Acid soaking without performing this step will result in permanent restriction of water flow through the filter and
premature cartridge failure.
2. Put on protective equipment - rubber gloves, safety glasses and
N-95 dust mask.
3. In a large plastic container, create a solution of one part muriatic
acid to twenty parts water. See Figure 12.
Introduce the muriatic acid as close to the water's
surface as possible. This will minimize splash and
reduce the risk of user contact with the acid.
4. Gently place the bottom of the cartridges into the acid solution.
Allow the cartridges to soak in the solution for 10 minutes, or
until bubbling stops.
5. Turn the cartridges over, placing the top halves into the solution.
Allow the top halves of the cartridges to soak for 10 minutes, or
until bubbling stops.
6. Remove the cartridges from the acid solution.
7. Using a garden hose with a straight flow nozzle, thoroughly
wash down the entire filter cartridge. Wash from the top down,
holding the nozzle at a 45-degree angle to the cartridge. See
Figure 11, on page 9.
8. Reinstall the cartridges and dispose of the acid solution in
accordance with local regulations.
XF®
FULLFLO
C-SERIES Cartridge Filter Installation and User' s Guide
C-Series Cartridge Filter and can
®
Figure 12
Muriatic
Acid
Water
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