Hi
I'm trying to get to the bottom of water hammer and splash on my cold water taps and shower. Strangely, when my hot water is hot, I do not get hammer or splash from the hot tap. (the boat is 45 feet long)
I have a 3 year old 12 volt Johnson Aquajet pump WPS 3.4 with a cut in pressure of 25 psi and a cut out pressure of 41 psi and a 1 litre surflow accumulator, which I have pressured to 25psi. I can increase the pressure on my accumulator, but this does not alter the hammer / splash. If I entirely de pressure it, the hammer / splash improves, but is still there.
Someone suggested that it could be a problem with the pump diaphram. So I took the pump to pieces and all seems well. (apart from the fact that I cannot get a servicing kit for my pump, as Johnson do not seem to do them anymore).
Any advise would be gratefully received
Thanks
Mark M.