Copper in Concrete

[kurt]

Looked @ something I don't often see today; a 60's ranch on a slab.

The copper water service enters the house in a central mechanical closet, supplies the water heater, and then goes back into the slab to run to the baths & kitchen.

I'm not a big fan of copper in concrete, am aware of the sleeve requirement in new construction, etc., but don't know how serious this one may, or may not be. It's all "L" grade copper, heavy stuff.

Is this a likely problem? Any of you guys that look @ slab construction w/similar conditions have an opinion?

[chicago]

I have that at my place here in Harwood heights Kurt,and there is no sign of a problem.

1957-same year I was born.It feeds the bar and bathroom in the basement.

[Chad Fabry]

I doubt it's a problem but it's supposed to be K. At some point the reactivity is neutralized and the main concern becomes slab movement.

If it's L where's the sweat joint?

[StevenT]

I agree. I would be more concerned with slab movement.

[kurt]

Thanks all.

I'm a doof. I'm now blanking on which has the blue stamping on the side; K or L? Who can tell me so I don't have to run over to Le Depot de Maison to find out......

No slab movement, no nothing to even suggest a problem. It's just one of those things I never see & it made me wonder.

[Brandon Whitmore]

I believe blue is type L

[Brandon Whitmore]

http://www.monotube.com/co_gilmoursuppl ... -specs.asp

shows the color coding of the copper pipe

[chicago]

Never considered copper gauge.

Thanks for the link.

[Chad Fabry]

K is soft. L isn't.

In my neck of the woods only K is allowed to be buried or used for gas.

[kurt]

I thought K & L both came in hard or soft(?)...

The stuff I saw had the blue color code, so it was L.

Brandon, thanks for the chart....