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4.2 Pipping
1. For improved pool plumbing, it is recommended to use a larger pipe size.
2. Piping on the suction side of the pump should be the same or larger than the return
line diameter.
3. Plumbing on the suction side of the pump should be as short as possible.
4. For most installations , always installing a v alve on both the pump suction and return
lines so that the pump can be isolated during routine maintenance. However, we also
recommend that a valve, elbow or tee installed in the suction line should be no closer
to the front of the pump than five (5) times the suction line diameter. See
Figure 2.
Example
: A 2.5 inch pipe requires a 12.5 inch (31.8 cm) straight run in front of the
suction inlet of the pump. This will help the pump prime faster and last longer.
NOTE: DO NOT install 90° elbows directly into the pump inlet or outlet.
4.3
Fitting and Valves
1. Do not install 90° elbows directly into pump inlet.
2. Flooded suction systems should have gate valves installed on suction and discharge
pipes for maintenance, however, the suction gate valve should be no closer than five
times the suction pipe diameter as described in this section.
3. Use a check valve in the discharge line when using this pump for any application
where there is significant height to the plumbing after the pump.
4. Be sure to install check valves when plumbing in parallel with another pump. This
helps prevent reverse rotation of the impeller and motor.
4.4
Electrical Requirements
• Install all equipment in accordance with the National Electrical code and all applicable
local codes and ordinances
• A means for disconnection must be incorporated in the fixed wiring in accordance with
the wiring rules.
4. INSTALLATION