Back-Up Pump Preparation - Liberty Pumps 441 Manuel D'installation

Basic Tools and Materials Needed
Methods A, B & C
• Primary pump check valve (if not already installed)
• Additional pump to keep well dry (as needed)
• Size 27 or 31 Deep Cycle Battery
(Liberty Pumps StormCell® Battery recommended)
• Channel locks or pliers
• Tape measure
• 5/16" socket wrench or nut driver
• Hacksaw or other pipe cutter
• Pencil/marker
• Thread seal tape
• PVC cement (solvent weld)
• PVC primer
• Cloth towel
Additional Tools and Material for Method A
• Additional PVC pipe for separate discharge line
• Rubber coupling with clamps to fit the discharge pipe
diameter (if check valve not installed)
• (1) 1-1/4" 90° elbow
Additional Tools and Material for Method B
• Additional PVC pipe for connecting back-up pump
between elbows
• Rubber coupling with clamps to fit the discharge pipe
diameter
• (2) 1-1/4" 90° elbows
• (1) 1-1/4" close pipe nipple
Additional Tools and Material for Method C
• Rubber coupling with clamps to fit the discharge pipe
diameter
4414000D
B a ck-up P um p P repa r a t ion
 Do not lift or carry a pump or a float assembly by its power
 Do not use metal or any other electrical conducting material
 Do not turn the pumps ON until all the fittings are connected
 To avoid an injury from a collapse of plumbing, support the
 Be prepared for water to leak from the coupling or piping
For assembly Method A, a primary pump check valve is
recommended as an advisable plumbing practice.
For assembly Methods B and C, a primary sump pump check valve
is required in the back-up sump pump system. Verify the presence
of a check valve in the primary sump pump. If no check valve is in
place, one will need to be installed during the assembly process.
1.
2.
3.
4.
Copyright © Liberty Pumps, Inc. 2019 All rights reserved.
RISK OF ELECTRIC SHOCK
cord. This will damage the power cord, and could expose the
electrically live wires inside the power cord.
to raise the float or contact anything inside an electrically live
sump pit.
with PVC cement and the cement has dried. Loose fittings can
unexpectedly disconnect from pipes and cause personal
injury and flooding.
pipe above the separation before cutting or disassembly. See
Figure 3.
when disassembling or cutting the discharge pipe. Protect
system components, tools, and supplies from getting wet. Dry
any work areas that get wet immediately.
Locate the TURN ON water level of the primary sump pump.
Mark this location on the discharge pipe. See Figure 3.
Drain the sump pit. The water level must be pumped down as
low as possible before going on to the next step.
To drain the sump pit:
a. Raise the float on the float switch until the pump turns on.
Use a wooden broom handle or stick to do this.
OR
b. If the sump pump has a piggyback-type power cord,
remove the float switch/power cord plug from the outlet
and plug the pump power cord plug directly into the
outlet.
2
1
Confirm sump pit has been drained but do not let the pump
run dry as this will damage the pump.
Note: A second pump may be required to keep the well dry
during installation of the back-up pump.
Unplug the primary pump and any other electrical equipment
in the sump (i.e., alarm).
3
– 7 –