[C320-list] water system leak?

[Koen Bennebroek]

hi Pat,
   
  yes I saw your earlier note on this, but I misread it. I did clean the filter that sits on top of the pump (it had some small particles in it), but I guess that's not what you meant. I need to get some angled screwdrivers to get the pump out (or remove the water heater which seems a pretty big job). I was planning to replace the pump anyway since it's waking up the marina.
   
  Thanks, Koen
  
Pat Moriarty <patm at psiurethanes.com> wrote:
  Ok I sent this in once already. Your leak is inside the pump and nothing will fix it but cleaning or replacing the pump. The more water system in service the more expansion and increased your cycle time. It will cost you nothing but time to take the pump apart and rinse the valves etc then reassemble. Something like a hair or calcium build up will cause a cycling problem. The intake side can not be a problem or you would have a leak without the pump in service or you would have cavitation because you are sucking in air and the pump would not turn off as air will not pump up to pressure.

Pat
SEXUALHEELING #130

At 11:18 AM 2/13/2006, you wrote:
  I ordered the water valves from Whale and installed
them in the cold water leads from the galley to the
stern shower and from the galley to the internal
shower. I did this because I suspected a leak in
either lead, since the pump would come on every now
and then without a faucet being open.

Now the interesting thing is that with these valves
open, the situation is the same as before, but with
one of them closed, the pump ticks on much quicker and
more frequent.
So my gut feeling now is that the leak may be in the
hot water leads. Should I expect the pump to cycle on
more frequent if there are less leads away from the
pump and there is a leak in one of the leads? I could
see that that's the case, since pressure will be
higher so the leak will be more 'visible' to the pump?

Also, would the pump come on if the leak was in the
leads from the water tanks to the pump?

By the way, I tried the adjustment screw on the pump
and that helped a little bit, but the pump still
cycles on. With the valves closed it's about once per
second.

Thanks, Koen


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