I’m looking for some wisdom guys (and ladies I suppose). I’ve got a friend with a condo down in Savannah, GA. It’s four stories and he is just above ground floor. There are poured concrete floors probably 6 inches thick. The parking is below him and there is full access to the pluming, which is run in copper with insulation sleeves. His desire is to run a supply line out to his portch, which is easily done by tapping the existing copper line and running it up through the concrete floor. My question is: Can I just drill a hole and run the copper straight through? Do I need a sleeve of some sort ? Can I just use a fireproof caulk? Somebody’s insight would be greatful.
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I would sleeve it. It's a simple thing to do and virtually eliminates the possibility that pipe movement will eventually wear thru the pipe.
Any details on that. What to sleeve it with? Thanks for the help
I would try PVC or ABS as the sleeve. The sleeve should fit snugly in the concrete hole and have an ID slightly larger than the OD of your copper pipe. A squirt of low expansion foam would fill the space between the pipe and the sleeve. The whole idea here is to prevent the inevitable movement of the copper pipe from causing wear where it rubs against the concrete.
PVC sleeve works well. I use electrical conduit for this sort of thing. Firestop caulk may be required by code in some places.
Why would you not use a saddle valve like they use to get water to on icemakers. If you do not need a great volume of water thsi may be the easiest solution.
concrete will eat copper. get a galvnize spinket. I like the ones with the washer on the back side so it cannot freeze.
I use electrical conduit for this sort of thing
wouldn't the copper and galv. conduit mix cause corrosion
between the two dissimilar metals
"wouldn't the copper and galv. conduit mix cause corrosion
between the two dissimilar metals"
I meant PVC electrical conduit.