You may have lost prime because
the well has run dry,
check valve has gone bad,
foot valve has gone bad,
or you have a leak in the suction pipe.
If there is water in the pump,
the internal jet may be plugged.
Remove the jet injector from the
pump and try to clear the obstruction
with a coat hanger or something similar.
There are two types of jet pumps:
those for deep wells and those for
shallow ones. Shallow well jet pumps work similarly to
submersible well pumps, but they only
work for wells at a depth of 25 feet or less.
Deep well pumps are more powerful,
meaning they can function in
wells as deep as 100 feet.
One of the most common reasons why the
pump might be running,
but you don't have any water
going to your house,
is that there is a malfunction
with the pressure switch itself.
If you take a look at the pressure tank,
you will see a pressure
switch at the bottom.
Another disadvantage
is that HJPs have a low overall
efficiency, typically between
10% and 30%, depending
on the fluid properties and
the nozzle-throat ratio.
This means that a lot of energy
is wasted in the process of
pumping the fluid mixture to
the surface.
Series WJ pumps are portable for mobile applica- tion. Single phase pumps have a carrying grip and are supplied complete with power cable, plug and ON/OFF switch. – Jet Pump (WJ) – Installation and Operation instructions. Peripheral pumps, also referred to as regenerative pumps (also see Side channel pumps), are centrifugal pumps whose impeller (see Peripheral impeller) rotates in a largely concentric casing channel with an inlet and an outlet opening. Peripheral pumps operate by means of an impeller characterised by a large number of small dual-flow radial blades (with dual input) arranged along its peripheral area. The centrifugal forces inside the rotor generate a circulatory flow between the impeller and the casing channel. A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action, typically converted from electrical energy into hydraulic energy. On the other hand, they have a better capacity. Another very striking advantage lies in the fact that these products are very inexpensive to purchase. For these reasons, they are widely used in the home to pump clean water , without abrasive particles or chemical liquids.
