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Antifreeze leaking thru the Thuma bypass shutoff valve.


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I replaced mine. My bypass used screw connectors so I just unscrewed the whole bypass circuit and made a replacement to match. 

It’s the piece on the bottom left here - 

 

996A7C1D-46B2-462A-B730-15E023441575.jpeg

Edited by Overland
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Snowball • The world's only spherical Ollie

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Parts of it. All brass fittings and stainless crimps. And also a better quality PEX except for a few bits I reused. I tried as best I could to make it modular so that sections could be pulled out easily to repair. It’s so difficult in places to maneuver a crimper, pipe, arms, etc. inside the hull. 

Everything stayed tight though on our recent trip, even with some good bumping around. Feels so much more solid, though it’s definitely an overkill project and one that I’d never have done had it not been one of those ‘if I’m doing this, then I may as well do that’ sort of things.   Nor would I have done it if I’d actually bothered to count all the friggin fittings and crimps ahead of time. 

Edited by Overland
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Snowball • The world's only spherical Ollie

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5 hours ago, Yukon said:

Anyone had to replace the shutoff bypass valve ?, looks tight to get to. And no antifreeze pressure to the water lines, is that a issue?

I  noticed mine was leaking a bit - under pressure. Not gonna worry about it. Plenty of anti freeze everywhere, the filter is out  of the Truma. Nor sure why I would replace it unless it just really lets loose. 

RB

Cindy,  Russell and  "Harley dog" . Home is our little farm near Winchester TN

2018 Oliver Legacy Elite II - 2018 GMC 2500 Duramax 

"Die young - As late as possible"
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