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Goulds water pump excessive cycling

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Goulds water pump excessive cycling Eric Scantlebury 02-05-2008
---> Update on problem Eric Scantlebur...02-06-2008
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Posted by Eric Scantlebury on February 5, 2008, 8:27 pm
Hello All,

I have an issue with my goulds well pump recently cycling on and off in an
excessive mannor. By excessive I mean the pump will kick on and off several
times a minute while water is being used in the house.

The specifics: I have a 1/2 horse power goulds Jet water pump model J5S
installed in my basement that is pulling water from a point in my front yard
(no well). This pump feeds a Wellmate WM-6 bladder water tank. The pump is
around 4 years old and the tank is around 10.

I think the pump is working fine as when an upstream valve is turned on the
preasure gauge on the pump falls like a rock from 60lbs to 40lbs kicking the
pump on which makes the preasure fly like a rocket back up to 60lbs kicking
the pump back off. This then repeats over and over. The manual for the
pump indicates 4 things may cause this. 1 - a bad foot valve (I don't think
this is the case as the pump holds preasure when not in use). 2 - the pump
is more than 5 feet from the water tank (it is 2 feet away). 3 - there is a
valve between the pump and water tank causing resistance (there is no valve
placed there) and 4 - a waterlogged water tank.

Ok - I also have had the service panel in my house upgraded one week ago so
power was off to the whole house for about 5 hours last wednessday.
Yesterday I ran a new line to the pump so had power off to that for an hour.
I don't think that rewiring the pump could have caused this but I throw it
out there as a coincidental thing anyway.

Anyone have any ideas as to what may be happening? I'm suspecting something
with the tank but I'm open to expert opinions.

TIA



Posted by Don Young on February 5, 2008, 9:44 pm

> Hello All,
>
> I have an issue with my goulds well pump recently cycling on and off in an
> excessive mannor. By excessive I mean the pump will kick on and off
> several times a minute while water is being used in the house.
>
> The specifics: I have a 1/2 horse power goulds Jet water pump model J5S
> installed in my basement that is pulling water from a point in my front
> yard (no well). This pump feeds a Wellmate WM-6 bladder water tank. The
> pump is around 4 years old and the tank is around 10.
>
> I think the pump is working fine as when an upstream valve is turned on
> the preasure gauge on the pump falls like a rock from 60lbs to 40lbs
> kicking the pump on which makes the preasure fly like a rocket back up to
> 60lbs kicking the pump back off. This then repeats over and over. The
> manual for the pump indicates 4 things may cause this. 1 - a bad foot
> valve (I don't think this is the case as the pump holds preasure when not
> in use). 2 - the pump is more than 5 feet from the water tank (it is 2
> feet away). 3 - there is a valve between the pump and water tank causing
> resistance (there is no valve placed there) and 4 - a waterlogged water
> tank.
>
> Ok - I also have had the service panel in my house upgraded one week ago
> so power was off to the whole house for about 5 hours last wednessday.
> Yesterday I ran a new line to the pump so had power off to that for an
> hour. I don't think that rewiring the pump could have caused this but I
> throw it out there as a coincidental thing anyway.
>
> Anyone have any ideas as to what may be happening? I'm suspecting
> something with the tank but I'm open to expert opinions.
>
> TIA
>
You already have the most likely cause: #4 - waterlogged tank.

Don Young



Posted by Eric Scantlebury on February 5, 2008, 10:02 pm

> You already have the most likely cause: #4 - waterlogged tank.

But the tank has a bladder. How do I determain if it is "waterlogged" which
should be impossible under normal circumstances?

Eric



Posted by EXT on February 5, 2008, 10:11 pm
Air leaked out of tank: bad fill valve. OR Leak in bladder: water filled the
air half of the tank behind the bladder.

>
>> You already have the most likely cause: #4 - waterlogged tank.
>
> But the tank has a bladder. How do I determain if it is "waterlogged"
> which should be impossible under normal circumstances?
>
> Eric
>



Posted by Eric Scantlebury on February 5, 2008, 10:22 pm

> Air leaked out of tank: bad fill valve. OR Leak in bladder: water filled
> the air half of the tank behind the bladder.

So how does one test for this? The tank, when the pump has cycled to it's
normal 60 lbs high point, has 36 lbs of pressure at the air valve. I've
read a little about this and apparently it should read 4 lbs less than the
low kick in win no water. Does the 36 lbs translate to anything non drained
and fully preasurized?



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