If you’re RV is like mine, the water pump is very noisy. How does one quiet the thing so the whole campground doesn’t hear you flush the toilet at 4 am??
I performed my typical online research and read some forum postings. From this research, it seems to me the primary problem is the sound of the pump being amplified by whatever it is mounted to – usually a panel of some sort. The secondary problem is a clanking/beating sound reverberating thru the motorhome – usually because of vibration in hard water lines. I felt that my problem was the former.
In my case, the water pump was mounted to a piece of plywood that was firmly attached to the basement floor. The three little rubber feet were mushed down somewhat and not really doing anything. Effectively, there was no isolation between the water pump and the motorhome so sound and vibration was being transmitted.
I found a piece of 3/8″ ID rubber hose in the junk bin and cut three sections about 3/8″ long. These would be my new rubber isolators.
The three screws holding the water pump in position were removed. I placed one of these sections of rubber hose under each of the mounting feet and re-installed the screws. However; I did not tighten the screws – just a very slight amount of pressure to hold the pump in position. The water lines are made of the firm PEX type tubing so they are neither soft/flexible nor hard copper lines. They had enough slack to allow the slight change in water pump position caused by my new rubber isolators.
How did it work?
I went inside the motorhome, flipped the pump switch on, and heard a nice soft hum. Oh, so much better!!!