[WestO]

I got the Jabsco 29200-0120 electric flush mechanism out of the boat, there was just a small bit of paper in the macerator and the impeller. Took it apart cleaned it up, the impellers both look good they look almost new. There was crud on the fins of the macerator impeller, cleaned that all off and put back together and reinstalled in boat. It worked for a bit then stopped again. Dang.

Took it out again (getting fast at that). More investigation. Hooked up to a battery in the garage and it stops spinning once I tightened the 4 long screws that attach the macerator impeller housing to the body. If I backed the screws off 1 or 2 turns then it must allow more room above the impeller and the impeller spins nice again.

I read the Jabsco manual and it says to put petroleum jelly inside the macerator housing and on the impeller shaft. Did that (make sure to use just a very light coating of jelly) I put some on the plate above the impeller also. After lubricating it spins good even when tightened all the way up.

Installed it a 2nd time back into the boat. Primed it with fresh water. I traced the hose from the Jabsco inlet and it get its water from a seacock in the hull of the boat. I made sure that was turned on. It flushed OK and added water to the bowl, but then it stops after a few flushes and blows the HEAD breaker located under the steering wheel right side. If I push the breaker it will flush and work again and fill the bowl, but will pop the breaker after 2 or 3 flushes in a row.

Anyone experience the head breaker popping often?

Learning way more about marine toilets than I thought I would.