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s WARNING
!
CAUTION
Reduction of plumbing sizes from what is used for the discharges of the primary 115 VAC pump and 12
VDC pump can result in system under performance. Discharge piping that is of insucient size can result in premature pump
and/or system operation failure.
Step 1 Step 2 Step 3 Step 4 Step 5 Step 6
s
!
NOTICE: Do not glue any parts until the entire assembly, including primary pump, has been dry-assembled to verify ts.
Fitting plumbing and routing wiring away from control oats will be much easier on a bench rather than working down inside a
sump pit. (Fig. 4)
Step 1
a. Install exible coupling onto 12 VDC pump discharge.
b. Position two hose clamps in the grooved recesses of exible coupling installed on the 12 VDC pump.
c. Tighten the exible coupling’s rst hose clamp connection to securely fasten it to the 12 VDC pump discharge.
d. Leave the hose clamp on the opposite end loose for the next plumbing piece.
Step 2
a. A 3/16" diameter air bleed hole has been drilled in the 90º street elbow that is provided with the kit. (NOTICE: Air bleed
hole must be located between the check valve and the 12 VDC pump to prevent the 12 VDC pump from air-locking.) The bleed
hole is located so that the water ow through it will be at a downward angle to prevent splashing from the basin/pit.
b. Slip 90º street elbow into the exible coupling attached to the 12 VDC pump discharge, and tighten the hose clamp to
secure elbow to the 12 VDC pump’s discharge. (When properly installed the threaded elbow connection of the 90º street
elbow should be facing straight up toward the top of the sump pit).
Step 3
s
!
NOTICE: A check valve is supplied and required for the backup pump’s discharge plumbing. This check valve must be installed
in the discharge plumbing between the backup pump and the connection joining the backup pump’s discharge to the separate
backup pump drain piping from the home.
a. Apply PTFE tape to male threads of provided check valve.
b. Thread PTFE taped end of check valve into 90° elbow.
Step 4
a. Position two hose clamps in the grooved recesses of the exible coupling on the check valve installed in the elbow.
b. Tighten the lower hose clamp to secure the exible coupling to the check valve body.
c. Loosely tighten the upper hose clamp so it does not fall o. This clamp will be used to secure the check valve to the
separate backup pump drain piping from the home.
Step 5
a. Review the discharge plumbing of the 115 VAC primary pump.
s
!
NOTICE: A customer-supplied check valve is required in the discharge plumbing of the 115 VAC primary sump pump. This
check valve must be installed in the discharge plumbing between the primary pump and the separate primary pump drain
piping from the home. A 3/16" diameter air bleed hole must be located between the check valve and the 115 VAC pump to
prevent the 115 VAC pump from air-locking. Locate the bleed hole so that the water ow through it will be at a downward angle
to prevent splashing from the basin/pit.
b. The 1-1/2" PVC pipe used in making the separate backup pump drain piping from the home must be cut so as to ensure that
the 12 VDC backup pump rests at on the oor of the sump basin when the plumbing is completed. Dry-t the assembly to
conrm prior to gluing (see Figure 4).
c. Once dry-t conrms that the 12 VDC backup pump rests at on the sump basin oor and aligns with the separate backup
pump drain piping from the home, secure all connections by applying approved waterproof adhesive to all necessary joints and
conrm that all exible coupling hose clamps are fully engaged with plumbing and fully tightened.
Figure 4
Drill 3/16" hole
12
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