DEEP WELL INSTALLATION FOR DOUBLE PIPE
Priming
Tee and Gasket
Seal
Coupling
-- 1" Plastic Drive Pipe
-- 1-1/4" Plastic Suction Pipe
Plastic Pipe
Adapter. (Supplied with Ejector)
-- 1" Plastic Pipe Adapter
-- Ejector Assembly
Figure 6 - Offset Installation
Plastic Pipe Shown
I Gasket
Drive Pipe
1461 0195
Figure 7 - Over the Well Installation
Steel Pipe Shown
Suction: 1-1/4"
Drive: Pipe or Plastic
1-1/4" Pipe Pipe Adapter
orPipePlastic J
1-1/4"
Cou
1-1/4x1"
Face
Bushinc
1" Nipple
1386 1194
Figure 8 - Jet Assembly With
I" and I - I/4" Drive Pipes
Piping In The Deep Well
See Figures 6, 7, and 8.
NOTICE: Deep well installations are either single pipe
(2" wells) or double pipe (4" and larger wells). In a dou-
ble pipe installation, the larger pipe is the suction pipe
and the smaller pipe is the drive pipe (very deep wells
may use suction and drive pipes of the same diameter).
Plastic pipe is ideal for double pipe installations. Due
to its light weight, it is easy to handle and does not usu-
ally require a block and tackle for installation and re-
moval.
Double Pipe Installation - Plastic Pipe
NOTICE: Use Teflon tape on all male threads on plas-
tic pipe and fittings to prevent air leaks in suction pip-
ing.
1. Inspect ejector to make sure that nozzle and ven-
turi openings are dean and clear.
2. Inspect pipe for any foreign matter or obstructions.
NOTICE: Make sure that no foreign matter enters pipe
openings while installing pump.
3. Make sure foot valve operates freely: attach to ejec-
tor with a close nipple. Use Teflon tape on male
threads.
4. Install nozzle and venturi in deep well ejector.
5. Using Teflon tape on male threads, install special
plastic pipe adapter (supplied with ejector) by
screwing adapter into 1-1/4" tapped hole in ejector
body (see Figures 6 and 8, above).
6, Thread a 1" plastic pipe adapter or a 1" nipple into
the 1" tapped hole in ejector body (see Figure 8).
7. Install sufficient plastic pipe in well casing to place
ejector at the proper depth. (Your well driller
should supply this information.)
NOTICE: As a guide, the ejector should be set at least
10 to 20 feet below the lowest water level with pump
running, if possible, but always at least five feet from
the bottom of the well.
8. Tighten all hose clamps securely on plastic pipe.
Use two damps per joint to prevent air leaks into
suction pipe. Clamp screws should be on opposite
sides of the pipe. Fill pipes with water to make sure
that foot valve and connections do not leak.
9. Install sanitary well seal on top of well casing; use
steel nipple through well seal as shown in Figure 6.
NOTICE: Align locating lugs on adapter flange and
pump base so that pump discharge will be aligned with
piping.
10. Install 1" nipple in one side of adapter flange. Slide
threadiess coupling down over drive pipe from
well. Thread adapter flange onto suction pipe from
well and align nipple and drive pipe.
11. Slide threadless coupling up and secure nipple to
drive pipe.
12. Remove paper backing from adhesive gasket. Apply
gasket to adapter flange, making sure that holes line
up.
13. Align locating lugs on pump base with locating lugs
on adapter flange; attach pump to flange with cap
screws provided.
(20 pages)
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