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SIGHT
GLASS
RETURN
LINE
TO POOL
(NORMAL
OPERATION)
WASTE LINE
FROM FILTER
(BACKWASH)
(4) BYPASS
VALVE
(3) DRAIN
VALVE
Figure 3
DO NOT PULL
CLAMP OUTWARD
FROM FILTER
Figure 4
OPERATION
When the filter is backwashed, use separation tank as follows to clean the
diatomaceous earth filter media of pool residue, hair, etc. During normal
filter operation the separation tank is not in use.
Backwashing through Separation Tank:
1. Turn filter pump OFF.
2. Put filter valve in BACKWASH position.
3. Open Air Release Valve (Key No. 1, Figure 3).
4. Open return line By-Pass Valve (Key No. 4, Figure 3).
5. Start filter pump. when a steady stream of water comes out of Air Release
Valve, close Air Release Valve and continue to backwash until water is
clear in sight glass.
6. STOP filter pump. Return filter handle to FILTER position; close return line
Bypass Valve.
7. Open small drain valve (Key No. 3) below By-Pass Valve and open Air
Release Valve on Separation Tank lid. Allow Separation Tank to drain.
Hazardous
pressure.
AIR RELEASE
OPENING/CLOSING TANK
VALVE (1)
LID
CLAMP
KNOB (2)
Opening Tank:
1. STOP FILTER PUMP and disconnect electrical power to pump before
SEPARATION
TANK
working on separation tank..
2. CLOSE suction and return line valves (if used).
3. OPEN air release valve on top of separation tank.
4. WAIT until all pressure is released from separation tank and system before
loosening any clamps.
Hazardous
pressure.
1. Open air release valve (Key No. 1, Figure 3) on to of separation tank to
release all presure from inside of tank.
2. Open drain valve (Key No. 3, Figure 3) and drain all water from tank.
3. Remove clamp knob from top clamp.
FILTER
4. Loosen top clamp; remove top clamp by lifting it straight up over tank or
CLAMP
dropping it onto filter base.
NOTICE: Do not pull clamp sideways to remove; to do so will bend and
damage clamp.
5. Remove tank lid from upper tank body. Be careful not to damage "O" Ring.
Place tank head in clean area.
To avoid tank blow-up and severe personal injury or major
property damage, BE SURE filter pump is off and all pressure is
released from system before proceeding to next step (opening
tank).
Releasing any clamp with pressure on system will cause tank
or tank head to blow off of base, causing severe injury or
major property damage! NEVER adjust, tighten or loosen any
"V" band clamp when tank is under pressure!
6
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