Page 10
ENGLISH
Table 2.
DE Slurry Mixture
Model No.
DE Quantity
(lbs.)
DEV48
5.0
DEV60
6.0
4.2
Coating the Filter Grids
1.
Prepare the recommended amount of DE as
outlined in Section 4.1.
2.
Start the filter system as outlined in Section 4.3.
3.
With the pump running and the pool skimmer
valve open, slowly pour the mixture directly into
the pool's skimmer basket. The slurry will be
drawn into the filter.
4.
After coating grids, rotate the bezel of the
pressure gauge so that the arrow next to the word
"CLEAN" is aligned with the needle of the gauge.
This marks the original starting pressure of the
system.
5.
Clean the filter when the pressure of the system
increases so that needle of the gauge aligns with
the arrow next to the word "DIRTY" on the bezel
of the gauge. This indicates an increased pressure
of between 10 and 12 psi above original starting
pressure.
4.3
New Pool and Seasonal Start-up
1.
Set the filter valve (two (2) or three (3) port
diverter or backwash) to the "FILTER" position.
2.
Open the pump hair/lint pot lid and fill the pump
basket with water to prime the system. Replace
the lid. (You may have to do this several times on
new and seasonal start-ups.)
3.
Completely open the air release valve on the
gauge/air release assembly by turning the knob on
the back of the assembly fully counterclockwise
(do not remove the knob).
4.
Be sure to open any filter isolation valves that
were installed in the system and make sure that
the filter drain plug is in place.
Stand clear of the filter
5.
circulate water through the system. When a steady
stream of water starts to come out of the air
release valve, close the valve.
6.
If this is a new filter, or the filter has just been
backwashed, add the DE slurry as described in
section 4.2.
Jandy
DE Pool Filters
®
No. of 1 lb.
Coffee Cans
(kg.)
2.0
10
2.7
12
and start the pump to
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Installation & Operation Manual
7.
Watch the pressure gauge to be sure that the
pressure does not exceed 50 psi in the filter for
normal operation. If the pressure approaches
these limits, turn off the pump and backwash the
filter, see Section 6.2. If the pressure remains high
after backwashing and reapplying the DE slurry,
refer to the troubleshooting guide on page 14 to
identify possible causes and solutions.
8.
After the pressure gauge has stabilized, turn the
bezel ring so that the arrow next to the word
"CLEAN" aligns with the needle of the gauge. As
the filter cleans the water, the grids will clog over
time, and the pressure will increase. When the
needle of the pressure gauge aligns with the arrow
next to the word "DIRTY" on the bezel ring, it is
time to backwash the filter. See Section 6.2.
4.4
Valve Operation
1.
The flow of water through a DE filter is controlled
by an optional backwash valve or two (2) or three
(3) port diverter valve.
2.
The handle on top of the backwash valve or
diverter valve can be moved to different positions.
The function of each position is described below.
See Figure 8.
NOTE
Depending on the model of backwash valve or diverter
valve installed with your filter, it may have all or only
some of the positions described in Table 3.
Figure 8.
Diverter Valve Handle Positions
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