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We have an old van which we have been refurbishing and it has a whale pressure switch water system. We replaced the kitchen taps and the inlet socket. When we tested it at home it all seemed to work ok but when we went out this weekend and used it on the battery it wouldn't work properly. We tried to adjust the pressure switches but all that happened was the pump did not turn off the taps constantly poured water out and the tank started to leak from vent. We took out the pressure switch in the back of the socket and played around with the one by the water tank. This worked ok and we were able to get hot water and the pump turned on and off but the taps did not stop flowing! We ended up turning the power off and boiling a kettle for hot water. Has anyone got any ideas about this?

if the taps are turned off fully then no water should be running,if so the tap is faulty.the pump will not stop running if you have a pressurized system and a tap is open.the pump will keep going if have a leak because it cannot build up and maintain pressure. i am thinking you have a carver 2 water heater and it may have a hole in it.then the pump would not turn off as it constantly trying to fill it.check that drain plug is in correctly and not leaking.if you have micro switches on your taps it is just possible that a micro switch is stuck in the ON position.this will make the tap run constantly and needs a new switch.check for wires to taps for micro switch type.

pressure switch

http://www.myidealcaravan.co.uk/pressure%20switch.html

Quote: Originally posted by Jedser on 19/3/2012

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... used it on the battery it wouldn't work properly. We tried to adjust the pressure switches but all that happened was the pump did not turn off the taps constantly poured water out and the tank started to leak from vent...

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