I am a licensed plumber< eighteen months ago I completed a basement remodel, adding a new bathroom and kitchen. I added a hot water recirculation line, with a brass watts pump, in the past two months I have had three different 1/2" 90's develop pin holes in them. the holes are in the fittings themselves not the joint. when I did the job the home owner did not want to replace their 20 year old water. a month ago I replaced the water heater. wondering if anyone has had something like this occur to them, or what the issue is.
pinhole leaks on hot water recirculation line
- Thread starter raleigh
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I am assuming that the leaks are all on either the recirculation line or the hot line that leads to it?
I have heard of something similar happening in a big assisted living facility, with a continuous recirc system. Does the system have an aquastat or a timer on it?
You might have some aggressive water, compounded by the fact that it is hot, and is continuously kept hot by the recirc system.
I have heard of something similar happening in a big assisted living facility, with a continuous recirc system. Does the system have an aquastat or a timer on it?
You might have some aggressive water, compounded by the fact that it is hot, and is continuously kept hot by the recirc system.
Diehard
In Remembrance
What material were the fittings?
Was it a PEX system?
Was it a PEX system?
Diehard
In Remembrance
Fitting material?
I assume wrought copper.
Ive seen a number of cast brass elbows with pin holes(over many years) when initial installed. In your case too many and time spaced to be bad castings.
I assume wrought copper.
Ive seen a number of cast brass elbows with pin holes(over many years) when initial installed. In your case too many and time spaced to be bad castings.
