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Well pressures

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Chris

05-30-2003 19:36:27

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My submersable well pump seems to run more often and for a much shorter period each time it starts than it used to, Anybody know what the pressure settings should be? both where the pump should start and where it should shut off

thanks

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Chris

06-02-2003 18:04:24

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Re: well pressures in reply to Chris, 05-30-2003 19:36:27

Thanks to all of you!! I do have a newer tank with a bladder. Something is definately wrong since the pump comes on at about 40 psi and shuts off at about 44. I'll check everything you guys listed.
Thanks Again!

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Tom

05-31-2003 05:29:51

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Re: well pressures in reply to Chris, 05-30-2003 19:36:27

Advice below is correct: check bladder in tank. If not bladder type, then it is water logged - add air pressure with tank empty of water up to about 20 lbs. Around here the cut-on is 40 lbs and cut-off is 60 lbs.

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VaTom

05-31-2003 04:52:04

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Re: well pressures in reply to Chris, 05-30-2003 19:36:27

Hi Chris,

Now that you've heard all about your tank, 30 and 50 psi are common pressure switch settings. Nothing magic about those numbers though. Due to some very poor advice from a supply company about my unusual situation, I have to run my switch at 80 on, 100 off. Those pressures effectively reduce my pressure tank size so I bought the largest tank I could find.

The reason for fewer pump cycles, I'm told, is to allow the pump to cool more per cycle. Your frequent pump activity results in a hotter pump with shorter lifespan. Another reason for a larger tank.

Get on with it! Good luck.

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paul

05-30-2003 22:54:21

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Re: well pressures in reply to Chris, 05-30-2003 19:36:27

What these guys say.

Some old systems have a simple tank, 1/2 air, 1/2 water. The air slowly disolves into the water, & you need to add air every now & then.

Newer systems have a tank with a rubber bladder seperating the air & water. When the bladder breaks, you basically end up with the old style system....

You are running out of air.

--->Paul

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Travis

05-30-2003 21:37:06

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Re: well pressures in reply to Chris, 05-30-2003 19:36:27

Yes, it may be losing its air, or the bladder has completly broken. I ran my submersible pump for five years this way, I would go out at least once a month, shut off the pump, open the water lines and use air to blow everything out. I always called it "getting waterlogged" I finally replaced it last year and it runs alot less now.

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Jon Hagen

05-30-2003 20:48:15

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Re: well pressures in reply to Chris, 05-30-2003 19:36:27

Sounds like your pressure tank/bladder tank is losing it's air charge. This means less compressible air in the tank and shorter cycle times for the pump to start/stop. add air to the pressure tank with a drain valve open and pump off untill cycle times are normal. With the pump off and a drain vlave open,add air to a bladder tanks air fitting untill bladder pressure is 2 psi below pump kick in pressure.

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