Startup/Operation; The Function Scheme Of The 6-Way Valve; Section 3: Maintenance - Pentair Cristal-Flo Installation And User Manual

High rate sand filter
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Start-up/Operation (See Figure 7)
Hazardous pressure. To avoid explosion and possible severe or fatal injury, filter system
pressure must not exceed 3,5 Bar (50 PSI) under any circumstances. NEVER test this filter
system with compressed air; never operate system with water temperature above 35° C (95° F)
To prevent equipment damage and possible injury, turn pump OFF before changing valve
position.
NOTICE:
Do not add chemicals directly into the pool skimmer. Adding undiluted chemicals may damage
equipment and void warranty.
1. Open system valves and make sure pump is filled with water. Make sure pool water level is 50 mm (2") above bottom of
skimmer opening.
2. With pump OFF, set valve to 'BACKWASH' position.
3.a. For Top Mount version: start pump, circulating water backwards through filter to waste. Do not install pressure
gauge until a steady stream of water runs out of gauge port; then stop pump and install gauge.
3.b. For Side Mount: Open the Air Vent Stem and start pump, circulating water backwash through filter
to waste. Do not close the Air Vent Stem until a steady stream of water runs out of the Air Vent port; then close the
vent.
NOTICE:
To prevent pump from running dry, be sure water level never drops below bottom of skimmer inlet.
Add water to pool if necessary to keep skimmer flooded while backwashing and rinsing.
4. Backwash until water runs clear (3-5 minutes).
5. Stop pump; set valve to 'RINSE' position.
6. Start pump; run pump for one minute.
7. Stop pump; set valve to 'FILTER' position.
8. Filter is now ready for service.
9. Record clean starting filter pressure gauge reading as a reference.
10. When pool is first filled, backwash once a day until pool water is sparkling clear. After that, backwash when pressure gauge
shows 0,30 to 0,50 Bar (5 to 7 PSI) higher than starting pressure.

The function scheme of the 6-way valve

FILTER
Normal filtration and vacuuming; water goes through filter to pool.
RINSE
For initial start-up cleaning and sand bed leveling after backwash; water goes
through filter to waste.
RECIRCULATE
Circulates pool water; bypasses filter.
WASTE
Lowers pool level or drains pool; water bypasses filter, goes to waste.
BACKWASH
Reverses flow for cleaning; water goes through filter to waste.
CLOSED
Shuts off all flow to filter and pool.
WINTERIZE
Leaves all valve ports partially open for winter storage.
General
Wash outside of filter with a mild detergent and water. Rinse off with hose.
Inspect sand bed at least once a year to remove foreign material which has not been backwashed out of system.
NOTICE:
DO NOT use solvents to clean filter; solvents may damage plastic components in system.
When the sand bed gets hard and crusty on top, remove all the old sand and replace it with new sand.
Weekly Pool Equipment Inspection
1. Check pressure during operation. When pressure is 0,3 to 0,5 Bar (5 to 7 PSI) higher than initial operating pressure, backwash fil-
ter (see instructions under "Startup/Operation").
2. Except during hot weather with heavy swimmer loads, operating filter 6 to 12 hours per day should be sufficient. Carefully monitor
water chemical balance and follow recommendations of your local pool professional.
Align
Tabs
Figure 7
Section 3
Maintenance
5

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