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PRIMING
When suction lift is used to draw water into the pump it is essential that all
connections and hoses are completely air tight, or the system will not work.
Although the pump is a 'self priming' type, it is necessary to completely fill the
inlet side of the pump with water before being started for the first time, or if
the system has been drained for maintenance or repair purposes. This is
known as priming the pump and is carried out as follows :-
1. Remove the small filler plug, situated on the top of the pump
chamber, and slowly fill the pump with water until all air is expelled.
NOTE: If a filter is fitted to your pump it is recommended that you remove the
plug on top of the filter unit and fill the bowl with water.
2. Adjust any device which may be fitted to the outlet side of the pump, so
as to ensure as great a flow as possible.
3. Switch on the pump and check for leaks. Water should start to flow
through the system after a short while. If, after 2-3 minutes, depending
upon the suction depth, water does not flow, check to ensure:
a) the inlet pipe is completely secure and free from defects. Even a pin
hole could prevent the pump from drawing water. This is the most
common problem encountered when operating water pumps.
b) the pump body has been primed correctly and is completely full of
water.
NOTE: If the pump is gravity or pressure fed, priming will not be necessary, as
the pressure of water will purge the system of air.
CARE AND MAINTENANCE
This pump should require no maintenance other than regular cleaning. If the
pump shows signs of wear or damage, contact your CLARKE dealer for
advice.
Do not use the pump if there is any damage to the mains supply cable.
Check pump installation regularly to ensure the base inlet is clear of leaves or
other debris.
Do not attempt to repair the pump yourself, as you may damage the
waterproof seals and invalidate your guarantee. Repairs must be carried out
by your CLARKE dealer, or contact the CLARKE Service Department on 020
8988 7400.
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