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Old 07-06-2021, 08:10 PM   #1
Junior Member
Join Date: Nov 2019
Location: Orangevale, CA
Posts: 22
VacuBreak Flush valve leaking when flushed on Dometic macerator toilet

I have a 2020 Dutch Star 3709 the mid half bath vacuum breaker flush valve leaks after flushing. This is the second valve with the same problem. I contacted Newmar Parts and this plastic electric valve is 245 dollars. The part number is 146831A for the Dometic electric macerator 8000 series toilet. I have searched on line and I can not find a replacement.

Has any body else had problems with this valve? Has anybody found a replacement valve on line?

Thanks in advance!
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Old 10-12-2021, 07:04 PM   #2
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Join Date: Feb 2018
Posts: 6
re part 146831A

Hello, did you ever find anything, mine is leaking too.
Thanks, George
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Old 10-13-2021, 11:07 AM   #3
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Join Date: Nov 2019
Location: Orangevale, CA
Posts: 22
Since I could not find one anywhere I decided to remove it and take it apart. I found the spring lodged in the plastic elbow. I removed it and reattached it to the brass grommet and that fixed it.

The replacement was about $250.

This was the second one that failed. The first unit was R&R by the dealer.
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ace, dometic, leak, macerator, toilet, valve

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