Walrus Pump TQ Series, Instruction Manual, Page: 5 / 16

IV. Piping
1. The suction line should be installed as short and straight as possible, with a minimum
of bends. The internal diameter of the suction pipe must be equal to, or greater than the
ports of the pump.
2. The connection between the suction line and pump must be airtight, and the suction
pipe must be positioned slopping down to the pump (thus avoiding the formation of air
pockets).
3. If it is likely the water supply may contain solid particles, such as leaves and sand, a
filter should be installed on the suction line.
4. If hose is used as the suction pipe, it must be non-collapsible.
5. To minimize pressure drop, the discharge pipe should be at least the same size as the
discharge port of the pump.
6. For long suction pipes or high suction lifts over 13 ft, the suction pipe should be of
greater diameter than the suction port.
7. Ensure all connections are completely sealed using thread tape only.
V. Connections to Water Source
1. Flooded Suction- from Well System
With gravity feed to the pump, there are no special adjustments to be made. See Fig. 3
below for recommended layout. Simply make necessary plumbing connections and
apply power. The pump is ready to use.
~ 3 ~
Fig. 3
Check Valve
Check Valve
Isolation Valve
Union
Well Supply Home Supply
Relief valve
To Drain
Storage Tank