Installation - Sears 390.262451 Owner's Manual

Well Pipe Installation
NOTICE: Use the installation method below which
matches your well type°
CASED WELL INSTALLATION
Io Inspect foot valve to be sure it works freely. Inspect
strainer to be sure it is clean°
2o Connect foot valve and strainer to the first length of
suction pipe and lower pipe into well Add sections of
pipe as needed, using Teflon tape on male threads_ Be
sure that all suction pipe is leakproof or' pump will
lose prime and fail to pump. Install foot valve 10 to 20
feet below the lowest level to which water will drop
while pump is operating (pumping water level). Your
well driller can furnish this information.
3. To prevent sand and sediment from entering the
pumping system, the foot valve/strainer should be at
least 5 feet above the bottom of the well
4_ When the proper depth is reached, install a sanitary
well seal over the pipe and in the well casing. Tighten
the bolts to seal the casing.
5o When using a foot valve, a priming tee and plug as
shown in Figure 5 are recommended
plug
Suction/
pipe
Primingtee
Standingwater
level (pump off)
Draw_ewn water
levet (pump on)
1'(3-s m)
At feast 5 feet (1 5 m)
Figure 5 - Cased/Dug Well Installation
DUG WELL INSTALLATION
Io Same as cased well installation.
DRIVEN POINT INSTALLATION
I_ Connect the suction pipe to the drive point as
illustrated in Figure 6o Keep horizontal pipe run as
short as possible, use Teflon tape on male pipe
threads Multiple well points may be necessary to
provide sufficient water to pump_
[_ck vaive
_ (trlve p_pe
coupling
.,__Wel_ point
_.,..._Dr'_ven point
Figure 6 - Driven Point Installation
Priming
Plug
Valve
846 0494
Figure 7 - Multiple Discharge
2.. Install a check valve in horizontal pipe. Flow arrow on
check valve must point toward pump.
HORIZONTAL PIPING FROM WELL TO PUMP
i. Never install a suction pipe that is smaller than the
suction port of the pump_
2. To aid priming on well point installations, install a line
check valve as shown in Figure 6. Be sure check valve
flow arrow point toward pump.
DISCHARGE PIPE SIZES
I, If increasing discharge pipe size, install reducer in
pump discharge porL Do not increase pipe size by
stages°