New Shallow Well, Driven Point
Installation (Figure 4)
1.
Install Berkeley ejector kit BK4875 (kits are sold sepa-
rately). 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 dri-
ving 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 suc-
tion 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 teflon
tape or pipe joint compound 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.
Cased Well Installation, 2” or Larger
Casing (Figure 5)
1.
Install Berkeley ejector kit BK4875 (kits are sold sepa-
rately). 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 run-
ning 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 teflon tape or a teflon-
based pipe joint compound 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 teflon tape or a
teflon based pipe joint compound. 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
Suction Pipe
From Well
Pressure Gauge
and Priming Port
Drive
Coupling
Drive
Point
Check
Valve
Built-in
Check
Valve
Not
to
Scale
Relief Valve
Priming
Tee and
Plug
Figure 4 – Driven Point Installation
Figure 5 – Cased Well Installation
To Household
Water System
Suction Pipe
From Well
Pressure Gauge
and Priming Port
Priming
Tee and
Plug
Built-in
Check Valve
Not
to
Scale
Well
Casing
Foot
Valve
Sanitary
Well Seal
Strainer
5-10'
At least
10'
Relief Valve