Flotec FP4108, Owner'S Manual

Page: 11 / 20

11
Installation
Figure 1 - Driven Point Installation.
SHALLOW WELL JET PUMP
INSTALLATIONS:
• Have a vertical depth between the pump and the water
being pumped of 25’ or less.
• Have one pipe from the well to the pump case.
• Can be installed in a bored or drilled well, or in a driven
well.
• Only run pump as required. Conserving water and
electrical energy is important to our environment.
REPLACING AN OLD PUMP
Hazardous voltage. Disconnect power to
pump before working on the pump or motor.
1. Drain and remove the old pump. Check the old pipe
for scale, lime, rust, etc., and replace it if necessary.
2. Install the pump in the system. 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 cannot lift water from the water source.
3. Adjust the pump mounting height so that the plumb-
ing connections do not put a strain on the pump
body. Support the pipe so that the pump body does
not take the weight of piping or fittings.
You have just completed the well plumbing for your
new shallow well jet pump. Please go to Pages 5 and 6
for discharge pipe and tank connections.
WELL POINT (DRIVEN POINT)
INSTALLATION (FIGURE 1)
1. 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.
2. Mount the pump as close to the well as possible
3. 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 as close to the well as possible - see
Figure 1). 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. If one well
point does not supply enough water, consider con-
necting 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 Pages 5
and 6 for discharge pipe and tank connections.