Sentry STWB140 Manual page 5

Glue one end of the pipe to the rotating elbow,
and glue the other end of the pipe to the foot
valve. Use 2 step primer and glue.
FLOAT VALVE INSTALLATION
With the float in the OFF (down) position, attach
the float valve to the suction pipe using the
included metal float bracket and hose clamp.
The bottom of the float should be placed a few
inches above the ON position of the primary
pump.
Be sure the float is free from any obstructions in
the ON and OFF positions.
Fully insert one end of the included 5/32-in.
tubing into the quick connect fitting at the top of
the float valve. Be sure connection is secure.
Rotating
Elbow
Pipe and
Foot Valve
Metal clamps
On/Off Float
Suction pipe
Float
Primary
Pump
A few inches
On level
5/32-in. Tubing
Quick
connect
Fitting
On/Off
Float
8
Route tubing to an available opening in the
"T" quick connect on the diaphragm valve. Trim
tubing to desired length, Ensure a square cut and
insert into quick connect. Be sure connection is
secure.
Excess tubing can be secured to suction or
discharge piping using zip ties, tape or worm
clamps. Be sure you do not crush or crimp the
5/32-in. tubing.
The 5/32-in tubing between the "T" quick
connect and the valve adjustment screw is
factory installed before shipment. Be sure those
connections are tight and have not come loose
during shipment.
INSTALLATION OF DISCHARGE PIPING
Install the included 1-1/2-in. slip coupling to the
discharge end of backup pump. Use PTFE Teflon
tape to seal threads and prevent leaks.
Glue 1-1/2-in. discharge pipe into slip fitting.
Components Used
Elbow fitting
- Used on vertical installations
Reducer fitting
- Used on vertical and horizontal installs
Push-to-fit Connector
- Works with 3/4-in. CPVC, PEX, and copper
pipe
Diaphragm
Valve
T Quick
Connect
Factory-installed
Tubing
Tubing from Float
1-1/2-in. Slip Coupling
Pump
Discharge
Discharge
Pipe
Elbow Fitting
(2) (1)
(4)
Reducer Push to Fit
Fitting Connector
9