Have ya'll heard of this yet?

This water pump was just installed in my motorhome and it sounds like there is a 747 in the basement ready to take off. This is beyond any reasonable noise standard for a water pump. Works great though, water blasts out of the faucet. I'd rather had a FloJet reinstalled but this is a warranty issue covered by an extended warranty plan and I don't get a say in what is installed. I tried to find a way to muffle the noise and was not successful. The water pump is in the garage under the commode, turn it on and the floor/your feet vibrate from the noise when you flush. I'm sure the adjoining camping site will hate it as much as I do.