13
CLEANING IMPELLER
1. Disassemble pump per disassembly instruction on Page 11.
2. Remove diffuser and impeller from pump.
3. Clean impeller and reassemble.
CLEANING SHALLOW WELL JET
To remove a stone or other foreign matter from venturi or
nozzle, proceed as follows:
1. D
isconnect power, and release all pressure on system.
2. If pump has an air volume control, unscrew compression
nut from fitting in lower portion of jet body. Tube will not
pull out of fitting.
3. Remove suction piping from pump.
4. Remove stainless steel clamp and remove the jet assem-
bly by pulling it STRAIGHT out and away from the pump
body.
5. Turn venturi counter-clockwise and remove it. The noz-
zle is now exposed and should also be removed by using
a 5/8" Hex socket wrench with extension. Turn counter-
clockwise. If socket wrench is not available, insert an ice
pick, or other similar pointed tool carefully into the noz-
zle. This will dislodge foreign material.
6. Flush foreign material out by running water through the
nozzle in the same direction as the dislodging tool was in-
serted. Jet body should be in a horizontal position for
flushing.
7. Replace nozzle and venturi.
8. Replace jet assembly as explained under “Installing the
pump on a shallow well,” Page 7.
CLEANING DEEP WELL JET
1. Disconnect power.
2. Disconnect piping and well seal or well casing adapter.
(If pitless adapter is used, piping does not have to be dis-
connected).
3. Withdraw jet assembly from well.
4. Unscrew and remove the venturi. Remove nozzle with a
socket wrench, if possible, and clean. If nozzle cannot be
removed, clean as explained in steps 5, 6, and 7 under
Cleaning Shallow Well Jet section above.
HOW TO AVOID OVER-PUMPING
A SHALLOW WELL
In the section on
Priming The Shallow Well Pump
, Page
10, the instructions were to open the pressure regulator all
the way after the pump starts to deliver water. If you are
over-pumping your well, however, you can partially close
the pressure regulator on your SEARS jet pump to increase
the pressure and reduce the delivery.
HOW TO HANDLE A GASEOUS WELL
In some localities well water contains gases which must be
allowed to escape before the water is used. This can be done
as shown in Figure 14.
A good way of delivering gas-free water is to suspend a pipe,
closed at the bottom and open at the top, surrounding the
suction pipe (Figure 14). Since the gases rise in the well cas-
ing, the water sucked down through the pipe and into the
suction pipe is free of gas. It is imperative that this type of
well be vented to the outside of any enclosure.
AIR CONTROL IN FLOWING WELLS
Flowing wells, or wells with little or no drawdown, could
create a special problem in air control in the operation of
your water system.
In such cases, it is recommended that you install a Captive Air
®
Tank, in which an air control mechanism is not required.
Figure 14
SERVICE
Pipe strap or
wire to hold
pipe sleeve
Pipe
sleeve
Pipe
cap
Tail
pipe
Foot
valve
Ejector
Gases
rise to
surface
