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Question

Hi I have a shurflo 7l/min pump in my 2003 Vanmaster - problem is when the taps are opened there's a dribble which runs out then the pump starts and runs fine. If I switch the power to the pump off and on again it seems to start immediately - could it be a problem with the pressure switch on the pump do you think?

Answer

It sounds as if the pressure switch is being a little temperamental. Alternatively you may have a restriction in the pipework between the pump and the tap which means that the drop in system pressure, when opening the tap, is not being registered immediately at the pressure switch.