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Unvented Undersink Water Heaters. For D.I.Yers.

Zoomup over 3 years ago

Carrying on from a recent thread about the potential dangers of amateurs installing unvented undersink water heaters incorrectly….. Click on this

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0 OlympusMons over 3 years ago

I have never found one that correctly installed has leaked. They are a fit and forget fitting. …
Z.
depends on the composition of the brass and its age. Dezincification can occur which leaches out the zinc leaving just copper. I have stripped out old copper pipes and the brass fittings are the first things to snap on bending. You often see it on the brass waste outlets in basins which turn to cheese, or perhaps that has more to do with unblocking chemicals used. Also, they do tend to weep slightly over time and need nipping up occasionally.
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0 OlympusMons over 3 years ago

I have never found one that correctly installed has leaked. They are a fit and forget fitting. …
Z.
depends on the composition of the brass and its age. Dezincification can occur which leaches out the zinc leaving just copper. I have stripped out old copper pipes and the brass fittings are the first things to snap on bending. You often see it on the brass waste outlets in basins which turn to cheese, or perhaps that has more to do with unblocking chemicals used. Also, they do tend to weep slightly over time and need nipping up occasionally.
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