by ericmark »
Tue Sep 09, 2008 12:55 pm
I have always used SWA. Never found conduit water tight how ever hard you try. 522.8.10 talks about conduit and ducts but I do not think it means outside for conduit under a concrete floor maybe? and the 544 comes in with minimum cross sectional area so can't use thin wall. Plus the problems with any movement.
Does it really need to be conduit?
Eric