Pentair BERKELEY 3PL Manual De Usario página 5

new shallow Well, Driven point installation
(figure 4)
Pressure Gauge
and Priming Port
Built-in
Check
Valve
Not
to
Scale
figure 4 – Driven point installation
1. Install Berkeley ejector kit BK4875 (kits are sold
separately). Follow the instructions provided with the
kit. Align the venturi with the top hole on the front of the
pump (See Figure 3).
2. Drive the well, using "drive couplings" and a "drive cap".
"Drive fittings" are threaded all the way through and
allow the pipe ends to butt against each other so that the
driving force of the maul is carried by the pipe and not
by the threads. The ordinary fittings found in hardware
stores are not threaded all the way through the fitting
and can collapse under impact. "Drive fittings" are also
smoother than standard plumbing fittings, making ground
penetration easier.
3. Mount the pump as close to the well as possible.
4. Use the fewest possible fittings (especially elbows) when
connecting the pipe from the well point to the pump
suction port. The suction pipe should be at least as large
as the suction port on the pump (include a check valve
– See Figure 4). 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 approved for use on PVC.
Joints must be air- and water-tight. If the suction pipe
can suck air, the pump cannot pull water from the well.
If one well point does not supply enough water, consider
connecting two or three well points to one suction pipe.
To Household
Water System
Relief Valve
Suction Pipe
From Well
Priming
Tee and
Plug
Check
Valve
Drive
Coupling
Drive
Point
222 0395 NF
cased Well installation, 2" or larger
casing (figure 5)
Pressure Gauge
and Priming Port
Not
to
At least
Scale
figure 5 – cased Well installation
1. Install Berkeley ejector kit BK4875 (kits are sold
separately). Follow the instructions provided with the
kit. Align the venturi with the top hole on the front of the
pump (See Figure 3).
2. Mount the pump as close to the well as possible.
3. Assemble the foot valve, strainer, and well pipe (See
Figure 5). Make sure that the foot valve works freely.
4. 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.
5. Install a priming tee, priming plug, and suction pipe to the
pump (See Figure 5). 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. 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.
5
To Household
Water System
Relief Valve
Suction Pipe
From Well
Built-in
Check Valve
Priming
Tee and
Plug
Sanitary
Well Seal
Well
Casing
Foot
Valve
10'
Strainer
5-10'
256 0395 NF