Macerator Toilet Squeak When Pump On

[righellis]

We have 2 macerator toilets. They work just fine. When on city water (about 40 psi) the noise is typical. Today noticed that when pump is on (about 60 psi) there is a prolonged squeak when flushing. Both toilets do it. Never noticed in our prior 2019 Newmar. Don't recall it happening in this coach before today but we have only had it for 2 months, so don't recall.

My guess is the higher pressure is trying to push more water thus faster and it squeaks??? But that is a wild guess.

Any thoughts?

[alank]

My first thought is, water doesn’t squeak. Don’t know where you’re at to get 60 psi water pressure, not normal, but put a pressure regulator on to lower the pressure to see if it helps.
I had one macerator really howell when the pump was running. The seal on the motor shaft that came through to the throat started leaking and water got into the motor bearing. When the bearing started to rust, it ended putting up a real scream. Pull the covers off the rear of the stool and look for a leak.