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4. Close the filter isolation valves on the system to
prevent flooding. Remove the drain plug located at the
bottom of the filter tank and allow the tank to drain.
5. Remove the tank clamp ring from the filter and
remove the tank lid. Inspect the tank o-ring for cracks
or tears and replace if necessary.
6. Pull the DE filter grid assembly out of the filter tank
bottom. Use the handles molded into the manifold to
aid lifting.
7. While the DE filter grid assembly is out of the filter
tank, rinse the inside of the tank with water. Replace
drain plug.
8. Gently rinse the grids with water. After cleaning the
filter grids, place the grid assembly back into the filter
tank bottom (see Sections 6.4 and 6.5 for further grid
cleaning instructions).
9. Replace the tank o-ring and tank lid.
10. Reinstall the tank clamp ring. See Section 3.4 for
tank clamp ring installation.
5.2 Filter Grid Disassembly /Assembly
1. Remove the complete grid assembly by following the
instructions in Section 5.1, steps 2-6.
2. Remove the manifold by first unscrewing the tie rod
knob in the center of the manifold. Then lift the
manifold assembly off of the grids and the outlet tube.
3. Remove the top spacer from the grids.
4. The individual filter grids can now be removed from
the grid support. Use care to avoid damaging the
grids.
5. See Figure 8 for the arrangement of filter grids in the
filter grid assembly.
6. To reassemble the filter grid assembly, arrange the
filter grids into position on the bottom plate (see Fig.
8). Use the plastic top spacer to hold the grids in place.
7. Inspect the o-ring at the top of the outlet tube for
cracks or excessive wear. Replace if necessary.
8. Assemble the manifold to the top of the assembly.
Make sure that the grids and outlet tube fit securely
into the manifold and that the retaining rod extends up
through the hole in the center of the manifold.
9
SECTION 5. Filter Disassembly/Assembly
OUTLET
PIPE W/
O-RING
DEL
FILTER
GRID,
SHORT
SPAN
Figure 8. Filter Grid Arrangement
9. Place the tie rod knob on the tie rod and tighten.
Tighten until the filter grid assembly is snug. Do not over
tighten.
10. Reassemble the tank o-ring and tank lid.
11. Reinstall the tank clamp ring. See Section 3.4 for
clamp installation.
SECTION 6. Maintenance
6.1 General Maintenance
1. Wash the outside of filter with a mild detergent and
water. Rinse off with a hose. Do not use solvents to clean
the filter, solvents will damage the plastic components of
the filter.
2. Inspect the DE filter grids at least twice a year. Remove
any foreign material which has not been backwashed out
of the system.
3. Check pressure during operation at least once a week.
4. Remove any debris from the pumps and pool skimmer
baskets.
5. Check pump and filter for any leaks. If any leaks
develop, turn off the pump and call a qualified pool
service technician.
6. Product safety signs or labels should be periodically
inspected and cleaned by the product user as necessary to
maintain good legibility from safe viewing distance.
7. Product safety signs or labels should be replaced by
the product user when a person with normal vision,
including corrected vision, is no longer able to read the
safety signs or label message panel text at a safe viewing
distance from the hazard. In cases where the product has
an extensive expected life or is exposed to extreme
conditions, the product user should contact either the
product manufacturer or some other source to determine
means for obtaining replacement signs or labels.
BOTTOM PLATE
DEL FILTER GRID
(7 REQUIRED)