Pentair 2000 Series - Manual (Page 5)

Rev. C 7-6-01 5 P/N 075122
D. HOW TO CLEAN THE SEPARATION TANK, performed after each backwash operation. (If installed or if applicable.)
The purpose of the separation tank is to collect the spent
diatomaceous earth during backwashing (cleaning) of the filter. It
must be cleaned after each backwash to prevent any clogging
problems. It is recommended that this procedure be repeated to
ensure complete backwashing of the filter. One backwashing may
not be sufficient.
1. Open valve C and valve D* to drain separation tank. While
the tank drains, the filter can be pre-coated and restored to
the filter cycle. Be sure valve B is closed. See Figure 3.
WARNING
Valve "D" is the air relief valve. It is important that this valve be
opened before proceeding further. The tank is pressurized
and is dangerous if the air is not vented prior to removing the
lid clamp. Failure to open the air relief valve could cause the lid
to separate resulting is serious bodily injury and/or property
damage.
2. To remove the clamping ring, partially unscrew the adjustment knob and release the head of the T-bolt from the
slotted bracket.
3. Remove tank lid with screwdriver or with a tool available from the manufacturer. Avoid cutting rubber O-ring.
4. When water has drained from bag, remove bag from tank by grasping the handles of the bag with both hands;
pushing down with one hand; pulling up with the other and lifting bag out.
5. Turn bag inside out and empty contents is a waste container. Rinse bag with garden hose.
6. Install bag in tank with the rim of the bag immediately below the tank inlet opening, then push down on the rim
opposite the inlet opening until the rim is level.
7. Remove rubber O-ring and clean both O-ring and channel. Lubricate O-ring with a non-water soluble grease or
silicone lubricant and replace O-ring in channel.
8. Clean the inside surface of the tank lid where it seals against the O-ring. Place lid on tank; push down on lid to seat
in-place.
9. Replace the clamping ring. Engage the head of the T-bolt into the slotted bracket and tighten the adjustment knob.
Hand tighten only.
E. HOW TO CLEAN FILTER MANUALLY & WINTERIZING INSTRUCTIONS
(Required at least once a year and when winterizing your filter to prevent damage during freezing conditions.)
1. Turn pump off.
2. Set valve handle or valves for backwash position,
(for SMBW only).
3. STAND CLEAR OF THE FILTER - Turn pump on and run for 3 minutes, then turn pump off.
4. Drain filter with respect to opening the air relief valves as discussed in a, b, and c, below.
a. To drain filter Model SM with gate valves, open drain valve and tank air relief valve and close all other valves.
WARNING
Valve "D" is the air relief valve. It is important that this valve be opened before proceeding further. The tank is
pressurized and is dangerous if the air is not vented prior to removing the lid clamp. Failure to open the air relief
valve could cause the lid to separate resulting is serious bodily injury and/or property damage.
b. To drain filter model SMBW, set valve handle to backwash position and open tank air relief valve.
c . To drain filter model SMBW with Separation Tank, set valve handle to backwash position; open tank air relief
valve; close all other valves and remove drain plug on backwash line.
5. To remove the clamping ring, partially unscrew the adjustment knob and release the head of the T-bolt from the
slotted bracket.
6. Remove tank lid with screwdriver or with a tool available from the manufacturer. Avoid cutting rubber O-ring or
bending of lid or tank O-ring channel.
Figure 3.