Waterpac Water Pump Problem

Surfn

hello all, i dont know if any of yous know much about these pumps, they are an oldish water pump for pumping water into dwelling house and or around the farm.ive a problem with mine, it doesnt seam to be holding the pressure. the cut out point is 40 on the clock and when it drops back to 20 it will kick back in again. it usually will take about 10 to 15 mins to drop back even though there is no water been used, but if i let the pressure build up and close the outlet valve from the tank, the pressure holds.ive been told its probably the float control valve or i think they said a sifter valve if i said that right.ive been draining the tank every few months and that seemed to help because the tank seemed to be filling with water but that doesnt seem to work as good now.can anybody give me any advice. thanks in advance

Pump101

Seems you have two problems.

1. You seem to have a leak some where after your valve on the line to your house. If the valve is closed then the pressure holds, evidence the there is now leak within the pump or down the well. So with the valve open on no taps open etc your still losing pressure then you have a leak some where.

2. Your pressure vessel is water logged,ie full of water with no air. You have said you have drained the tank but have you checked the air pressure in it? this should be 18 psi.

minktrapper

how old is the pump