I measured several times and each time my water pump comes after LESSthan 2gallons are used in the house.I have:1hp jet pumpBladder water tank Amtrol Model CM8003 (32gal, 15=94dia, 46=94high,closest similar model specs on their website)Well water is hard water.The sweat line on outside of water tank is 1/3 of the way up the tank,and the upper 2/3 of the tank sounds hollow, so I know there=92s water/air in it. Tank specs say air pressure in tank should be 30. Imeasured 32 with tire gage, so kinda close. Pressure switch turns onat 28psi, instantly jumps to 40 where it stays for about 10sec,quickly rises (in less than 5sec) to 58 , then shuts off and instantlydrops to 50.I=92m guessing maybe the stub to the water tank might be mostly cloggedand that the tank is not acting like the reservoir it should be???Opinions appreciated.Thanks!Theodore

...Check the small diameter line to the pressure switch...perhaps it's where the problem is.Otherwise, sounds like classic case of the waterlogged pressure tank.32 gal isn't real big, a small change in pressure is a good volume.I'd drain the tank and reset the pressure and see if the symptoms improve....I'm betting they will.--

Well pump comes on after only 2 gallons used???

Sep 23, 2010 23 Replies

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Caesar Romano 15 years ago

On Thu, 23 Sep 2010 20:17:48 -0700 (PDT), millinghill wrote Re Re: Well pump comes on after only 2 gallons used???:

CORRECTION: the above should read "2 psi BELOW", not "ABOVE"

sorry of the brain-jam.

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Harry K 15 years ago

If you are getting any water at all blowing out the pressure valve, the bladder is busted. Harry K

Harry K

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millinghill 15 years ago

Pressure gage is immediately after pump. I have a photo of it here:

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Here's a video of the same pressure gage as the pump turns on, cycles through, and stops.

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I'm confident that all valves are fully opened. Any advice or guidance is grealty appreciated!!

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Bob 15 years ago

At the cottage I drain system in winter & startup in spring. One year pressure came up to normal pump stopped & then pressure started to drop right away. After a little frustration I found my pump has a valve that directions say open until pump pumping water & then close until flow looks normal? Well I had closed it all the way. This was my probem. after opening the valve, pump started to work properly. I have no idea what this thing is for but I leave it open all the time & pump works great. Bob "Stormin Mormon" wrote in news:i7i862$gk2$ snipped-for-privacy@news.eternal-september.org:

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