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Author Topic: Brass fittings  (Read 981 times)

timothy4140

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Brass fittings
« on: December 26, 2020, 09:19:22 PM »

This past week I had my second fitting on my heat exchanger developed a leak, when changed it was paper thin as if it was sand blasted...
This is second time, first year or so ago, different heat exchanger...
Thoughts???
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Tim C
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mlappin

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Re: Brass fittings
« Reply #1 on: December 27, 2020, 08:52:08 PM »

Something with the water, boiler side or domestic or both? Maybe try dielectric unions?
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RSI

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Re: Brass fittings
« Reply #2 on: December 27, 2020, 10:25:36 PM »

What kind of fittings are these? Is your pump way oversized?
I would collect a sample in a clear jar and let it settle and see if there is much sediment in it. if there is then I would install a filter.
If you haven't had the water tested recently, I would look into getting that done.
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E Yoder

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Re: Brass fittings
« Reply #3 on: December 28, 2020, 04:17:36 AM »

Were these fittings on the domestic side or boiler side?
I saw a HeatMaster unit with various fittings honeycombed thin recently. Turns out they were using some odd powdered water treatment. I think electrolysis was doing its thing.
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mlappin

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Re: Brass fittings
« Reply #4 on: December 28, 2020, 09:11:30 AM »

Were these fittings on the domestic side or boiler side?
I saw a HeatMaster unit with various fittings honeycombed thin recently. Turns out they were using some odd powdered water treatment. I think electrolysis was doing its thing.

Much like in a diesel I imagine. I have a sleeve out of a Waukesha that had numerous pits around the bottom ring and one made it clear thru the liner eventually.
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Radio Tech1964

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Re: Brass fittings
« Reply #5 on: December 29, 2020, 10:17:16 PM »

This brought up a good question for me..Did I ground the boiler when I reinstalled it  ::)
Better check that tomorrow that would go some ways to reducing the effects of electrolysis.
I was half frozen to death when I installed this time and I have never even looked at grounding since. :D
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