Water pump / sprinkler

john · 2007-06-17T16:24:26+00:00

Hello, I seem to have some problems with my water pump. If I just run one home appliance for the water, the pressure drops pretty quickly.For instance , Im trying to water my lawn now.. the pump gets up to 60 PSI , and then drops to about 37 PSI within 2 minutes...then the pump turns on again. Doesnt this seem to be dropping too quickly? I wanted to run 2 sprinklers at the same time, but it seems impossible with the quick pressure drops.I have a picture of my setup here - I need a bigger resorvoir ?If temporarily increasing the water pressure just for the sprinklers would work, im willing to do it. Just not sure which knob increases the pressure. Any info would be awesome. (And I will be careful if I get some advice here on increasing the pressure.)thanks much,john

Jun 17, 2007 22 Replies

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Harry K 19 years ago

Oh? Since the precharge is added with the tank empty, why wouldn't it be the 'total tank volume'? Of course it isn't once the pump kicks in and adds water into the tank compressing that air bubble.

Harry K

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dpb 19 years ago

Because there's a diaphragm or bladder that isn't symmetric...

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Harry K 19 years ago

Any diagram of a bladder tank that I have seen (I haven't cut one open to check) shows the bladder collapsed against the bottom of the tank when it is empty.

Harry K

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