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Author:
mr leak (CA)
Water pressure at street is about 15 psi so several older houses in this area were built with a water system that has a 1/2 hp jet pump supplying a captive air tank in the garage all designed to boost the water pressure to about 40 psi. About a year ago I replaced the bladder captive air tank and today got a call that the old Montgomery ward pump motor was frozen ie not working. I find out that the air bladder had ruptured. Any thoughts as to the cause ? Did the old pump just keep pumping beyond the pressure limit and rupture the bladder? Any thoughts I belive the tank has a 5 year warranty.
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Author:
packy
the pump, be it new or old, does not know when to turn on or off. the pressure switch controls it.
so when you install a new pump. install a new switch as well.
as to why the bladder ruptured ??????
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Author:
hj
There is probably not a single jet pump that could EVER overpressurize the tank, so that is not the problem. Given the size of the tank and your incoming pressure, the tank diaphragm probably just wore out.
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Author:
North Carolina Plumber (NC)
Any sediment or debris in the water will also shorten the life of a bladder tank. The quality has certainly dropped over the past few years as well.
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Author:
Paul48 (CT)
You may as well take advantage of the warranty. Nowadays manufacturers will test and subject their product to wear and tear equal to the warranty period, and cheapen the materials used if it appears they are lasting too long. With that, they reallize they will have some premature failures like yours. Electronics manufacturers will actually film their boards with infra-red, and add components to make the board run hotter.Pretty Sad but true.
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Author:
LemonPlumber (FL)
At pressure used, if it was reduced to serve. The tank has failed.When re installing the new .!Check and balance the use for best longevity.two pounds less than the city pressure at install.When the pump needs to be replaced look at a grundfos for real water flow and the neighbors should not be told!
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Author:
mr leak (CA)
Thanks for your responses. What is interesting is that the water is city water and paid for thru the water bill. The jet pump in the garage and captive bladder air tank is needed for these houses as I understand only because they are close to the same elevation as the water storage tanks and consequently need a boost. The water flowing in from the public water supply is approx 20 psi which is too low to have a functional flow. Next question is I worder why the water company does not have to supply and maintain the boster system located in the garage. As a utility would it not be reasonable for them to supply a functional flow water system.?
Thoughts?? These houses are dated about 1960 + -
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Author:
hj
They normally have nothing to do with the water system once it arrives at your property line, which is why most water meters are NOT on the house's property.
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Author:
LemonPlumber (FL)
You might check the service points through the local health department but 8Psi flowing was until recently excepted here.where do the individual meter's lay????the city most hold to service points as billed!!!our new minimum psi is 32.if the pressure drops below that it becomes unsafe.Your local health department wields a large federal chain of controls.ask them first.
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