Flotec FP401215H Manuel d'utilisation et d'entretien télécharger pdf (Page 4)

Installation 4

For parts or assistance, call Flotec Customer Service at 1-800-365-6832

Replacing An Old Pump

Hazardous voltage. Disconnect power to pump before working

on 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 will not be able to pull water from the well.

3. Adjust the pump mounting height so that the plumbing 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 Page 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 if your pump is not equipped with one – 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 or a PTFE-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. 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 6 for discharge pipe and tank connections.

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.

To Household

Water System

Pump Priming

Tee with Plug

or Gauge

10'

Min.

5–10'

Suction Pipe

From Well

Foot

Valve

Priming

Tee and

Plug

Sanitary

Well Seal

Check

Valve

Figure 2: Cased Well Installation

To Household

Water System

Pump Priming

Tee with Plug

or Gauge

Drive

Coupling

Drive

Point

Priming

Tee and

Plug

Drive point

below water

level

Check

Valve

Figure 1: Driven Point Installation

Typical pump

shown herein

not to scale.

1 2 3 4 5 6 7 8 9 ... 39 40

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Flotec FP401215H Manuel d'utilisation et d'entretien Page 4

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