Hi all,
I've recently fitted a new Jabsco parmax 4 water pump and 5l accumulator.
Now whenever the pump is turned on it sounds like a helicopter is landing on the boat, the noise is coming from down the side of the boat rather than the pump itself. The pump is on its rubber feet which I've loosened and has flexible pipe connecting it to the main water pipes. I've also played around with changing the angle of the pump to reduce vibration noise. When I reach down and touch the cold water flow I can't feel it vibrating excessively.
Through online research it sounds like a water hammer and I have followed all the suggested steps in trying to remove the air from the system but couldn't find instructions for a boat and don't think that simply turning the cold water feed off and leaving the pump on will clear the pipes.
Additionally the parmax 4 is higher rated than the pump I took out and doesn't seem to be very powerful, it won't power my bathroom and kitchen taps at the same time, I'm not sure if this is connected to the noise.
Any insights would be gratefully recieved.