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Morris, IL | I'd probably spilt them into two different manifolds, probably can't run all your tubes off one manifold anyway (to much flow for one, they told me 12-13 loops of 1/2" tube was max). I used conduit sweeps with a coupler and short extension because sweeps only worked for 5-6" concrete. We secured all the sweeps to a treated 1"x6" with EMT clamps, then secured the 1"x6" to our concrete grade board, this spaced them away from the walls some and held them somewhat strait. Then we ran all the tubes feeding them through the sweeps. Just before we poured the concrete we added a piece of plywood with holes drilled in it to organize them (hold them up strait and such). After concrete set up we removed the plywood. Worked great, got a picture of it to (doesn't show the plywood board).
Edited by NEILFarmer 2/16/2012 18:56
 (Shop floor 10 2011.JPG)
 (Shop floor 26 2011.JPG)
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 Shop floor 10 2011.JPG (67KB - 50 downloads)
Shop floor 26 2011.JPG (75KB - 55 downloads)
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Pex in shop floor, running up to manifold?
