Dometic macerator pump noise

[mattman]

Hello,

My boat came with a Dometic toilet and macerator pump and I'm trying to tell if it's operating normally. It seems quite loud for a pump but this is my first time ever hearing a macerator, so trying to understand if this is normal or it needs servicing.

Here is a short video of the sound:

https://photos.app.goo.gl/k7cWBy2MjzHwsMe59

Thank you!

[Sam Woodbridge]

I can’t comment on the noise, because I only know the one on my boat. Once I had a loud noise too and the pump stopped working. I took it apart to find beer can tab stuck in it.

Maybe take it apart too? Take pictures of it before you do, that always helps me to get it back the way it came out.

[sv_pelagia]

Ours was loud and problematic... we got rid of it and replaced with a diaphragm pump

[peghall]

That sounds like a electric macerating toilet running dry (no water going through it). Much of that will "fry" the impellers in it.


You're in Seattle...Call Marine Sanitation and Supply ('"Marine-San") 800-624-9111--the most helpful Dometic dealer in the country! And I recommend you be on the boat when you do, so you'll be able to provide model name/number I suspect you have one of Dometic's "MasterFlush" toilets. Ask for Leah. The toilet should have come with instructions..apparently not. She should be able to provide them and will explain how it works, how it should be plumbed and how to use and maintain it.



Tell her "Hi" from me.


--Peggie