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5. Valve Operations:
a.
Push-pull backwash valve.
(1)
Push handle on valve down with slight twisting motion as far as it will go.
(2)
Lock upper pin in cap.
(3)
Proceed through steps I.6 to I.11, which follow.
b.
Multiport rotary valve.
(1)
Position valve to 'Backwash' setting.
6. Stand clear of the filter and start pump. Filter is now running in its backwash mode. Close High Flow™ manual air relief valve
only after a continuous stream of water is flowing from the valve.
7. Backwash filter for approximately 3-5 minutes or until backwash water is clean.
8. Turn off pump. Set control valve back to filter position and open High Flow™ manual air relief valve again.
a.
Push-pull backwash valve.
(1)
Twist to unlock plunger; then raise handle as far as it will go.
(2)
Turn handle clockwise to lock upper pin in underside of cap.
b.
Multiport rotary valve.
(1)
Position valve to 'Filter and Vacuum to Pool' setting.
9. Stand clear of the filter and start pump. Close High Flow™ manual air relief valve only after a continuous stream of water is
flowing from the valve.
10. The filter has now started its filtering cycle. Check that there is water returning to the pool and take note of the filter pressure.
11. The filter pressure in step I.7 above should not exceed the pressure originally observed on the filter when it was initially
started. If, after backwashing, the pressure is 4 to 6 psi above the start condition, it may be necessary to change the sand in the
filter.
Over a period of time certain foreign matter and materials can become imbedded in the top of the sand media bed and will successfully resist
being flushed out during the backwash cycle. During inspection as noted above, this foreign material and any contaminated sand should be
removed from the tank. Replace any old sand removed with new clean silica sand. Replace tank lid or valve and carefully follow instructions
in Section C, Lid and Valve Installation Instructions.
J. WINTERIZING THE FILTER.
1.
In areas that have freezing winter temperatures the pool equipment must be winterized to protect it from damage.
2.
Backwash the filter. Shut off the pump, any automatic controls and set the rotary multiport control valve to the winterize
position. For Push-pull valve equipped filters, leave the valve in the backwash (T-handle down) position.
3. Remove the small knurled drain port cap at the bottom of the filter.
Remove ONLY the drain port cap to drain water from filter.
Removing the entire fitting will drain the sand. The filter will drain slowly. Leave the drain port cap off and store it during the time the
system is shut down.
The rotary multiport control valve should be left in the winterize position during the shutdown season so that the rubber seal of the valve
diverter has no pressure on it. Failure to do so can damage the valve's spider gasket which can cause property damage from leaking
water.
4.
Drain all appropriate system piping.
5.
It is recommended that the pump and filter be covered with a tarpaulin or plastic sheet to inhibit deterioration from the weather.
DO NOT wrap pump motor with plastic.
Rev. H • Rev. H • Rév. H
12-9-99
NOTE
NOTE
CAUTION
CAUTION
7
P/N • Núm/Pte. • Réf. P/N 99226000
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