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INSTALLATION
STEEL PIPING
INSTALLATIONS
When
steel pipe is-used
to install the jet, be sure
all pipes
are clean and the ends are reamed.
Screw both
1-1/4 _ NPT
suction
pipe
and
1" NPT drive
pipe
directly
into the jet
body.
The special
adapter
nipple
furnished
with
the jet is
not used on steel pipe installations,
and should
be discarded.
Add sufficient
piping,
using pipe thread
compound
on the
joints until proper
depth
is reached.
NOTICE:
Pipe compound
can damage
plastic
components
in pump.
Use only Teflon
tape
or Plasto-Joint
Stikl
when
connecting
pipe to pump.
SINGLE
PIPE JETS - 2" OR 3" WELLS
Be_foreinstalling
jet in well,
it is necessary
to soften
jet
leathers
by soaking
in water
for a minimum
of one hour.
Single pipe-jets
must
be installed
with
steel suction
piping
in the well.
Make
sure
all pipes
are clean
and
ends
are
reamed
before
lowering
any piping
into
the well.
Look
through
pipe to make certain
there
are no obstructions.
During
the process
of lowering
pipe into the well, always in-
stall coupling
on top end of pipe and above
clamp.
This will
prevent
accidental
dropping
of pipe into well.
Attach the jet to the first length of suction
pipe 1-1/4" (NPT).
Use turned
couplings
(furnished)
on 2" wells. Standard
cou-
plings
may be used for suction
piping
on 3" wells. Use pipe
compound
on male threads
only.
Tigl3t.en gac!_l_¢ngth
of pipe as it is lowered
into the well.
Lower
it to proper
depth
which
is 10-15 feet
below
the
drawdown
water
level. This is the level to which
the water
will drop while the well is being
pumped
continuously.
NOTICE:
Due to normal
irregularities
in the leather
of the
cup seals and the inner walls of the drop pipe, 2 _ packer
jets
do not form
a perfect
seal. In a dormant
system,
water will
leak back into well over time and pump
will normally
start
and cycle to maintain
system
pressure
level.
PRIMING
PIPE (OR
PIPES)
IN WELL
Fill piping
in well with water as each length is added,
or after
piping
is complete
in well. This serves
to double
check
for
leaks in piping
and foot valve, and simplifies
final priming
of
pump.
INSTALLING
CASING
ADAPTER
Slide adapter
on to well casing
as far as it will go. Tighten
three
bolts
to seal the adapter
to the casing.
Place a 1 _ nip-
pie of proper
length
in the drive pipe opening
in the ciksing
adapter,
and tighten
top nuts. This will seal the glands on to
both suction
and drive piping.
Add elbows
and flexible
pipe
adapters
for horizontal
installations.
'Lake Chemical
Co., Chicago,
Illinois.
SHALLOW
WELL
INSTALLATION
AND OPERATION
Installing
the Pump
on a Shallow
Well
A shallow
well jet is available
for use when
the SEARS jet
pump
is installed
on wells 20 feet or less to drawdown
water
level.
Install this jet as follows:
a.
Loosen
the stainless
steel clamp until it fits over the flange
on the jet body.
b. Place O-Ring in circular
groove
on face of suction-drive
line flange.
If necessary,
use petroleum
jelly to hold
in
place.
c.
Venturi
that protrudes
from the jet body must be inserted
in top (1-1/4" NP'I') tapping.
For ease of assembly,
lubri-
cate the small O-Ring on the end of the venturi
and push
the shallow
well jet assembly
into place.
d. Align lugs on jet body with slots in pump.
e. Place clamp
over the flanges
and tighten
securely.
For standard
tank installations,
an air volume
control
is nec-
essary and is connected
to the 1/8" tapping in the jet body.
Connect
as shown
in installation
drawing,
Figure 4, Page 5.
PIPING
IN THE
WELL
A shallow
well jet pump
can be installed
on a dug well,
drilled
well or with
a driven
point.
SEARS shallow
well jet
pumps
have a built-in
check valve. In a dug or cased well, a
foot valve and strainer
is recommended
and should
be in-
stalled 5 to 10 feet below
the lowest level to which
the water
will drop
while
the pump
is operating
(pumping
water
level). See Figure 4, Page 5. Your well driller
can furnish
this
information.
The strainer
should
not be too close to the bot-
tom, or sediment
may clog it. Before installing
foot valve,
check
to see if it works
freely.
When
using a foot valve, a priming
tee and a plug as shown
in Figure 7 is recommended.
Figure 7
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