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Question:

Can I terminate copper water pipes inside a wall?

I am remodeling and have moved my laundry elsewhere. The copper water pipes that previously serviced the laundry need to be terminated. Can I just put these in the wall and cover them up and still be up to code in Boston? I'll probably put a service panel in. Thank you.

Answer:

Codes are state and local, so check with your local building inspector, but I would say youre going to have to remove them. Most codes do not allow water pipes with-in a certain distance of service panel. You can also ask a local electrician, or maybe local LOWES or HOME DEPOT for advice. After reading your clarification, I have this to add. You can solder caps on the ends to just close the lines, (making sure you pressure test before closing the wall), but this would be a good time to install a homemade expansion valve. Just solder on an increased diameter size piece of copper pipe (about 12 inches long, if you have room) and cap it. This traps air in this end section of the line,which greatly reduces sharp pressure fluctuations, and will greatly reduce wear and tear on your plumbing and all its components, especially your water heater. This will cure or prevent future occurance of condition called hammering.
If you solder caps on the lines, you should be fine. Installing an access panel is always a good idea in case you need those lines later. Using compression type fittings in a wall is not code.
If you solder caps on the lines, you should be fine. Installing an access panel is always a good idea in case you need those lines later. Using compression type fittings in a wall is not code.
Codes are state and local, so check with your local building inspector, but I would say youre going to have to remove them. Most codes do not allow water pipes with-in a certain distance of service panel. You can also ask a local electrician, or maybe local LOWES or HOME DEPOT for advice. After reading your clarification, I have this to add. You can solder caps on the ends to just close the lines, (making sure you pressure test before closing the wall), but this would be a good time to install a homemade expansion valve. Just solder on an increased diameter size piece of copper pipe (about 12 inches long, if you have room) and cap it. This traps air in this end section of the line,which greatly reduces sharp pressure fluctuations, and will greatly reduce wear and tear on your plumbing and all its components, especially your water heater. This will cure or prevent future occurance of condition called hammering.
It's best to avoid dead-ends in water piping, if at all possible.
It's best to avoid dead-ends in water piping, if at all possible.

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