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5. Remove the Stand Pipe Blocker and clean the
Sand Tank neck carefully.
6. Connect the Multi-Port Valve to the Sand Tank by
using the O-Ring and the Flange Clamp Set. Note:
the direction of PUMP port on valve needs to face
pump out port.
7. Connect the Sand Tank to the Pump with Hose,
Hose Clamps and Hose Adaptors.
Plumbing
1. Make sure the lter is worked under the work
pressure and using a pressure control valve when
the system is using a booster pump.
2. If the pump position is higher than the water level,
it requires to install the back water control valve.
3. If the pump position is lower than the water level,
it requires installing an isolation valve. It could stop
the water return back when people do the general
inspection.
4. Minimize the length of pipe and the number of
ttings to minimize friction loss to ensure maximum
efciency.
5. Connect all plumbing to the Multi-Port Valve taking
care that all joints are glued or tightened securely
to prevent leaking.
6. To prevent breakage and damage to the pump and
Multi-Port Valve, use only pipe sealants specically
formulated for plastics.
7. Ensure solvents are not excessively applied to
ttings as this could run into O-Rings and create
sealing problems.
8. Do not over tighten ttings or adapters.
CHAPTER 3: MULTI-PORT VALVE OPERATION
1. Filter: Position for ltering the body of water.
Incoming water from the piping system is
automatically directed by the Multi-Port Valve to the
top of the lter bed. As the water is pumped through
the lter sand, dirt and debris are trapped by the
lter bed, and ltered out. The ltered water is
returned from the bottom of the lter tank, through
the Multi-Port Valve and back through the piping
system.
2. Backwash: Position for cleaning the lter media.
Water ow is reversed by the Multi-Port Valve
through the lter bed so that water ow is directed
to the bottom of the tank and up through the lter
bed, ushing the previously trapped dirt and debris
out the waste line.
3. Rinse: Position for ushing the lter system.
The water ow is directed by the Multi-Port Valve
through the lter bed and out the waste line. This
process settles the lter media bed into place and
ensures any dirt or debris is rinsed out of the lter,
preventing possible return to the Swimming Pool or Spa.
4. Waste: Position for bypassing the lter bed to
Waste. The water ow is directed by the Multi-Port
Valve straight to the backwash outlet, bypassing the
entire lter bed. This Multi-Port Valve position is used
to lower the water level or for vacuuming water with
high dirt loads.
Backwash
Filter
Waste
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