How to protect 3/4" copper pipe passing through concrete

03-13-2008, 01:13 AM	#1
Mike Warner Member   Join Date: Jul 2007 Location: Denver, Colorado Posts: 47	How to protect 3/4" copper pipe passing through concrete I have a split level and need to drill through concrete for a 3/4" copper pipe from my boiler to some baseboard radiation. Any recommendations for the hole size, and what to line it with so that the heat-up/cool-down expansion and contraction doesn't wear my pipe? Thanks, Mike

Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. DIYChatroom.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any home improvement task!

03-13-2008, 01:25 AM	#2
Chris Johnson ICF Construction   Join Date: Oct 2007 Posts: 314	How to protect 3/4" copper pipe passing through concrete Core a 1 3/4" hole and insert a piece of 1 1/4" ABS then feed your copper through. seal the ABS to concrete with hydralic cement, seal the copper to ABS is some low expansion foam. __________________ Chris

03-13-2008, 01:37 AM	#3
Mike Warner Member   Join Date: Jul 2007 Location: Denver, Colorado Posts: 47	How to protect 3/4" copper pipe passing through concrete Thanks Chris, much appreciated. Mike