Advertisement
PIPING
INSTALLATION
Cased
Open
Well
Water
Foot
Valve
Strainer
Screen
18360695
Figure 3
Horizontal
Piping
From
well
To Pump
When the pump is offset more than 25 feet from the well,
horizontal
piping
should
be increased
in size to reduce
fric-
tion losses.
In no case should
the offset piping
be smaller
than the suction
tapping
of the pump.
Horizontal
Offset
Piping
Sizes
for Shallow
Well Jets
t
1-1/4"
Up to 25 Ft.
1-1/2"
25 to 50 Ft.
2 _
50 to 200 Ft.
Discharge
Pipe Sizes
When
the pump
is set at a distance
from the house
or point
of water use, the discharge
pipe size should
be increased
to
reduce
pressure
losses
caused
by friction.
1"
l
1-1/4"
1-1/2"
Up to 25 Ft.
_
25 to 100 Ft.
100 to 600 Ft.
ff horizontal
suction
pipe
is more
than
25' long,
install
a
priming
plug at well head to allow filling of pipe.
SEARS jet pumps
should
be used vdth
Captive
Air® Tanks
(see Figure 2, Page 3). For
mounting
pump
to tank,
pur-
chase tank fittings
Kit No. 2788.
SEARS Captive
Air* Tanks
are pre-charged
with air at the fac-
tory.
Check
the tank Owner's
Manual
to find if air charge
needs
adjustment.
Pump
model
390.2508
requires
30
pounds
for proper
operation.
The Jet pump
can also be mounted
on standard
horizontal
tanks.
A mounting
kit with
an AVC is furnished
with
tank
(Figure
1, Page 3). Instruction
are also included.
The
installation,
operation
and care
of your
Hydroglass®
pump
is very similar
to cast iron pumps.
We ask, however,
that you keep
the following
points
in mind.
IMPORTANT:
Use teflon
tape supplied
with
the pump
for making
all threaded
connections
to the pump
it-
self.
Do not
use pipe
joint
compounds
on the pump!
1. Wrap one and one-half to two layers of Teflon tape on all
male
threads
being
attached
to pump.
This vdll insure
leakproof
connections.
Do not overtighten
threaded
fiv
tings in the plastic
pump.
If leaks do occur,
remove
the
fitting,
clean
off the old Teflon
tape,
rewrap
with one
and one-half
to two Myers of new
tape and remake
the
connection.
2.
3.
Be sure to support
all piping
connected
to your Shallow
Well Jet Pump.
To connect
AVC to the pump,
remove
the 1/8" pipe plug
(Key No. 13, Page
11) from the jet portion
of the pump
body near the suction
tapping.
Insert
a 1/8" fitting
into
this tapping.
Cut tubing
to length
and assemble
the two
fittings on the air volume
control
and pump
body.
Advertisement
