The Medway Handyman wrote:
Howard Neil wrote:
Hi, My bladdered water pump has a problem. I found that there was
water both sides of the bladder in the holding tank. Yet I cannot
find a split (which is what I was expecting to find) or even a hole
in the bladder.
I have filled it with water and stood it on dry concrete for half an
hour but there was no leak. Can these bladders just leak under
pressure, please?

Its not a bladdered pump, its a bladder in the pressure accumulator. The
bladder simply keeps the water under pressure when the pump is off demand.

Sounds like a pressure leak to me.

Thank you for the correction. It was difficult for me to describe it,
particularly as different manufactures describe their tanks differently.

Yes, it's definitely a pressure leak. However, how does the water get
from one side of the bladder to the other without going through it? Yet
I can find no sign of a hole. I have ruled out osmosis as otherwise a
similar effect would have been noticed in other bladders. My only
thought is that there is a hole that only appears when the bladder is
under tension and I hoped there would be someone on uk.d-i-y who could
confirm or deny this possibility.

Still, only half an hour now and I should be able to speak to the main
agents.


--
Howard Neil