MYERS HB75S Manual Del Usuario página 13

Installation
CASED WELL INSTALLATION, 2"
OR LARGER CASING (FIGURE 2)
1. Mount the pump as close to the well as possible.
2. Assemble the foot valve, strainer, and well pipe (see Figure
2). Make sure that the foot valve works freely.
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.
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-tight 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 Pages 14 and 15
for discharge pipe and tank connections.
Figure 2 - Cased Well Installation.
INSTALLATION FOR SURFACE WATER
(FIGURE 3)
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.
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).
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.
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-tight 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 Pages 14 and 15 for
discharge pipe and tank connections.
Figure 3 - Surface Water Installation.
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