PUMPS installed on a well or drop/suction pipe. Water or other liquid source
may be a well, tank, spring, cistern barrel, etc. Where maximum lift, pumping
level, distance to water does not exceed 25-30 feet unless using deep well model. (9 meters)
These pumps
may also be used as a hand held bilge pump, barrel/drum pump or for initial
priming a jet or centrifugal pump.
INSTALL pump on well pipe, or
suction/drop pipe. TEFLON tape or a good quality thread, sealant should be used
on all threads. Make up threads on pump hand tight or enough to prevent
leaks.
PRIME pump by water into the discharge and pumping handle until
all air is eliminated an pump is primed.
IF handle continues to pump easy
with little or no resistance (pumps air) and does not prime:
PROBLEM is a
hole or leak (bad connection) in the suction pipe, above the water level. Be
sure suction pipe is submerged.
IF handle pumps hard (back-pressure) and
delivers little or no volume:
PROBLEM is suction or intake is obstructed
(well point or screen plugged/stopped-up) or lift exceeds 25-30 ft.
A
common problem with small diameter driven, or screened wells is a plugged well
point or screen.
For example let us say we have a 2 in. driven well 30 ft. in
depth with what appears to be a static water level of 10 ft.
this would
indicate we have plenty of water. But if we have a plugged point/screen this
condition may prevent the water
reaching true static level, which we will say
in this example, is 18 ft. A good way to check this is to pour water in the
well
pipe to the surface, if it stands full or goes down very slowly well
point is plugged (stopped up or sealed off).
If the water goes down
rapidly or you cannot fill the pipe, the well point is open and should produce
water .
TO CORRECT this condition (plugged well point/screen) pull pipe
and replace point/screen or acid treat well.
If you are unfamiliar with this
procedure contact us for details.
Note: On many applications it is desirable
to use a foot valve with an intake strainer on the drop , pipe.
This
creates positive prime and prevents undesirable material from entering suction
pipe.
Performance and ease of prime win be improved if the internal check
valve assembly in the pump is
removed when using a foot valve. When pumps are
to be used in this manner they may be ordered with-out
the internal check
valve.