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Valves on most pumps are made of a plastic cage,
a spring and metal seat. Sometimes the cage will break due to debris in the supply
water, allowing the valve to float. The metal valve seat could be worn
or scored due to
dirty supply water, allowing water to leak past a closed valve. The valve assembly sits on an o-ring that fits
between the valve assembly and the head of the pump. Click
here for a selection of replacement valve assemblies. Check
this o-ring for wear and the brass seat for scoring. Usually this
condition is caused by cavitation
due to insufficient water supply. Cavitation in this area will destroy
your pump. The worm holes under the o-ring are in the head of the pump and not
fixable. If
there are worm holes on the o-ring seat, fixing your water supply problem
by replacing the valves and
o-rings will help for a while. But, the problem will soon return as the
pressurized water will work it's way under the o-ring, through the
wormholes. For a
discussion on pumps click here. To
see a range of replacement pumps click here.
SOME OF THESE OPERATIONS CAN BE
EXTREMELY DANGEROUS. IF YOU DO NOT HAVE SUFFICIENT TRAINING IN THESE PROCEDURES, WE RECOMMEND YOU
SEEK ASSISTANCE FROM A
QUALIFIED
TECHNICIAN
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PRESSURE WASHER
TROUBLE SHOOTER
