5
QUAD D.E.
®
Cartridge Style D.E. Filter Installation and User’s Guide
Preparing Diatomite
Your filter requires diatomaceous earth (D.E. or diatomite) for proper filtration and operation. Your filter elements
must be precoated with this material in order to protect their surfaces and provide the most efficient filtering
action. Refer to
Table 2
for the proper quantity to use with your filter. We recommend the use of D.E. which is sold
and labeled for use with swimming pools and spas. These grades of D.E. typically have a median particle size of
34 microns, which is ideal for most applications.
1. The Quad D.E. filters are listed with the appropriate amounts
of diatomite to be used to precoat the filter elements. A one
(1) pound coffee can filled (level) with diatomite is equal to
one half pound weight of diatomaceous earth. Do not “pack”
or compress diatomite into the coffee can.
2. Mix the required amount of diatomite with sufficient water in
a bucket to make a thin, milky mixture.
3. Refer to page 6,
Coating the Filter Elements with
Diatomaceous Earth
for instruction on introducing the
diatomite slurry into the filter.
System Restart Instructions
1.
Open the High Flow™ Manual Air Relief Valve until it snaps into the full open position (this only
requires a quarter turn counterclockwise).
Wait until valve releases ALL air trapped in the filter before
assembly, disassembly or servicing.
2. Stand clear of the filter tank, then start the pump.
3. Close the manual air relief valve after a steady stream of water appears.
4. Filter system is not working properly if:
a. A solid stream of water does not appear within thirty (30) seconds after the pump’s inlet basket fills with
water.
b. The pressure gauge indicates pressure before water out-flow appears.
If either condition exists,
shut off the pump immediately
, open valves in the water return line to relieve
pressure, and clean the air relief valve (see page 10). If the problem persists, call Pentair at (800) 831-7133.
SYSTEM RESTART
Filter Area
Weight of
No. of 1 lb.
(sq. ft.)
D.E.
Coffee Cans
60
6 lbs.
12
80
8 lbs.
16
100
10 lbs.
20
Table 2
THIS FILTER OPERATES UNDER HIGH PRESSURE.
When any part of the circulating system, (e.g., clamp, pump, filter, valve(s), etc.), is serviced, air can enter the system and
become pressurized. Pressurized air can cause the lid to be blown off which can result in severe injury, death, or property
damage. To avoid this potential hazard, follow these instructions:
