New Shallow Well Installation | 5 |
WELL POINT INSTALLATION (Figure 5)
1.Install the control valve and pressure gauge in the pump body (see Figure 1).
2.Install ejector kit FP4875 or 29650 (kits are sold sep- arately). Follow the instructions provided with the kit. Align the venturi with the top hole on the front of the pump (see Figure 4).
3.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 fit- tings” are also smoother than standard plumbing fit- tings, making ground penetration easier.
4.Mount the pump as close to the well as possible.
5.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 5). 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.
You have just completed the suction piping for your new shallow well jet pump. Please go to Page 8 for discharge pipe and tank connections
CASED WELL INSTALLATION, 2" OR LARGER CASING (Figure 6)
1.Install the control valve and pressure gauge in the pump body (see Figure 1).
2.Install ejector kit FP4875 or 29650 (kits are sold sep- arately). Follow the instructions provided with the kit. Align the venturi with the top hole on the front of the pump (see Figure 4).
3.Mount the pump as close to the well as possible.
4.Assemble the foot valve, strainer, and well pipe (see Figure 6). Make sure that the foot valve works freely.
5.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.
6.Install a priming tee, priming plug, and suction pipe to the pump (see Figure 6). Connect the pipe from the well to the pump suction port, using the fewest
To Household |
|
Water System |
|
Pressure Gauge |
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and Priming Port | Relief Valve |
| |
P | Suction Pipe |
| |
| From Well |
To Household |
|
Water System |
|
Pressure Gauge |
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and Priming Port | Relief Valve |
P | Suction Pipe |
| |
| From Well |
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Check Valve |
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Check
Valve
222 0395
Not
to
Scale
Priming |
Tee and
Plug
Check
Valve
Drive
Coupling
Drive
Point
Priming |
Tee and |
Plug |
Sanitary |
Well Seal |
256 0395 |
Well |
Casing |
Not |
|
| |
to | At least | Foot | |
Scale | |||
Valve | |||
10' | |||
| Strainer |
Figure 5: Driven Point Installation
Figure 6: Cased Well Installation
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