Chemical Cleaning - Pentair Cristal-Flo II Installation And User Manual

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Chemical Cleaning

1. It is recommended to use industry standard filter cleaner, available at
pool suppliers. These cleaners remove oils, scale and rust from the
sand bed in one cleaning operation.
2. Mix a solution following the manufacturer's instructions on the label.
3. Backwash the filter with the valve as described above.
4. If the filter is below pool level, switch pump off and close the
appropriate valves to prevent draining the pool.
5. Switch off pump, open filter drain and allow filter to empty. Place valve
in "Backwash" position.
6. After filter has drained, close filter drain and remove the pump strainer
pot lid.
7. Be sure the backwash lines are open.
8. Switch the pump on and slowly pour the cleaning solution into the pump
strainer with the pump running. If filter is below pool, open shut off
valve slightly to allow pump to run.
9. Continue adding solution until the sand bed is saturated with cleaning
solution.
10. Switch off the pump and leave filter in "Backwash" position. Allow the
filter to stand overnight (12 hours).
11. Replace the pump lid and follow backwash procedure as described
above.
12. Do not allow the cleaning solution to get into the pool.
Pump and Sand Filter System Installation and User's Guide