Pentair BERKELEY 5FN-L Manuel D'utilisation page 5

Installation
Step 3. Lower the pipe into the well until the strainer
is five feet above the bottom of the well. It
should also be at least 10 feet below the well's
water level while the pump is running in order
to prevent the pump from sucking air. Install a
sanitary well seal.
Step 4. Install a priming tee, priming plug, and suction
pipe to the pump (see Figure 2). Connect the
pipe from the well to the pump suction port,
using the fewest possible fittings – especially
elbows – as fittings increase friction in the pipe
(however, include a foot valve – see Figure 2).
The suction pipe should be at least as large as
the suction port on the pump. Use PTFE pipe
thread sealant tape on threaded pipe joints.
Support the pipe so that there are no dips or
sags in the pipe, so it doesn't strain the pump
body, and so that it slopes slightly upward from
the well to the pump (high spots can cause air
pockets which can air lock the pump). Seal the
suction pipe joints with PTFE pipe thread sealant
tape. Joints must be air- and water-tight. If the
suction pipe can suck air, the pump cannot pull
water from the well.
You have just completed the suction piping for
your new shallow well jet pump. Please go to
Page 6 for discharge pipe and tank connections.
To Household
Water System
Not
to
Scale
10'
Min.
5–10'
Figure 3: Surface Water Installation
Pump Priming
Tee and Plug
Suction Pipe
From Well
Check
Priming
Valve
Tee and
Plug
Foot
Valve
Screen
2348 0396
INSTALLATION FOR SURFACE WATER
(FIGURE 3)
Step 1. The pump should be installed as close to the
water as possible, with the fewest possible fittings
(especially elbows) in the suction pipe. The
suction pipe should be at least as large as the
suction port on the pump.
Step 2. Assemble a foot valve and suction pipe (see
Figure 3). Make sure that the foot valve works
freely. Use PTFE pipe thread sealant tape on
threaded pipe joints. Protect the foot valve
assembly from fish, trash, etc, by installing a
screen around it (see Figure 3).
Step 3. Lower the pipe into the water until the strainer
is five feet above the bottom. It should also be
at least 10 feet below the water level in order to
prevent the pump from sucking air.
Step 4. Install a priming tee, priming plug, and suction
pipe to the pump (see Figure 3). Support the pipe
so that there are no dips or sags in the pipe, so
it doesn't strain the pump body, and so that it
slopes slightly upward from the well to the pump
(high spots can cause air pockets which can air
lock the pump). Seal the suction pipe joints with
PTFE pipe thread sealant tape. Joints must be air-
and water-tight. If the suction pipe can suck air,
the pump cannot pull water from the well.
You have just completed the plumbing for your
new shallow well jet pump. Please go to Page 6
for discharge pipe and tank connections.
Sealing Pipe Joints
Use PTFE pipe thread sealant tape for making all
threaded connections. Make sure that all pipe joints
in the suction pipe are air tight as well as water tight.
If the suction pipe can suck air, the pump will not be
able to pull water from the well.
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