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Old 07-24-2012, 12:48 PM   #1
rollandelliott
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Default Booster Pump is cycling please help



Here are a couple of photos of my set up. Just click on thumb nail above to see it. .
The Pressure Limit switch is basically not doing anything since it is set to 50 psi.
This is how the system works currently. When I open a bathroom sink faucet, the pressure slowly goes down from around 68 to 30psi. When the pressure reaches around 38psi the booster pump kicks in a repressurizes everything back to 68 psi.
However every 10 minutes the pump kicks in and works for about 2 minutes. The wierd thing is that the pressure does not go up or down. It just stays at the high 68 psi.
What is causing this issue? The pump should only kick on when the pressure is low.

Instead it kicks on every 10 minutes.
The tank manufacture told me that the pressure is default 25psi and I should raise it to 36 psi or 2psi lower than intake.

To give you a complete picture. This is a well based water source. At the well there is a 40-60psi switch and a 40 gallon bladder tank. It goes into the house and there is a whole house water filter. right above the water filter is the pump system you see photographed.
direct link to photo:
http://www.freeimagehosting.net/t/kg647.jpg
tq 400 pump curve:
http://www.walruspump.com/images/stories/PDF/home/tq/tq-en-dm-06.pdf

also if I turn the by pass valve on, and close the pump isolation valve, the system does not cycle. At first I thought it was a slow leak somewhere, but the PSI does not go down when the pump kicks in every 10 minutes.
any help is appreciated. ;


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Old 07-24-2012, 02:28 PM   #2
johnjh2o
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It sounds like the PRV valve needs replacement. After the pump turns off it leaks some pressure by. Causing the pump to recycle.

John



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Old 07-24-2012, 03:48 PM   #3
speedbump
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First of all I would get rid of that one faucet filter called a whole house filter.

Next, I would get rid of the pressure switch and put the booster pump on a flow switch. You can restrict the pressure coming into the pump with your PRV to get desired pressure from the booster. No more cycling

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Old 07-24-2012, 04:02 PM   #4
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Quote:
Originally Posted by speedbump View Post
First of all I would get rid of that one faucet filter called a whole house filter.

Next, I would get rid of the pressure switch and put the booster pump on a flow switch. You can restrict the pressure coming into the pump with your PRV to get desired pressure from the booster. No more cycling
Gee speedbumd, that sounds like a cycle stop to me.

John

You do understand I'm just kidding.
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Old 07-24-2012, 04:56 PM   #5
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You do understand I'm just kidding.
Naturally, my feathers don't get ruffled nearly as much as that special someone that we both know. :-)
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Old 07-26-2012, 02:22 AM   #6
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I just want to add the Speedbump really knows his pumps, helped me out a bunch.

I still need to order a bladder tank from you but money is tight at the moment. I keep spending it on crap I don't need.

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Old 07-26-2012, 01:42 PM   #7
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I still need to order a bladder tank from you but money is tight at the moment. I keep spending it on crap I don't need.
It's a Manly thing. It's what we DO! Just like that 5 7 I bought. I came into a small windfall and did the right thing.
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Old 07-26-2012, 03:58 PM   #8
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I just bought another 30-06 yesterday.

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Old 07-26-2012, 04:21 PM   #9
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I just bought another 30-06 yesterday
Good man, I always knew you were one of us!!!
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Old 07-26-2012, 04:57 PM   #10
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I have a decent collection going.



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