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So besides the fact that it all has to run downhill there's a few more things I need to know about plumbing for sink and toilet drains. I'm pouring a floor soon and want to put drain lines under the slab. One toilet and one sink is all there will be, is 3" line big enough? And how much drop...

I'll be putting up metal roofing material for my interior walls. Now the question is what's the cleanest way to mount the switch and receptacle boxes. If I proceed just like it was drywall with flush mount boxes the problem is that in some places the raised ribs on the metal will fall right...

I want to put some runs of conduit in my floor in a few locations so I can pull power to machines without tripping over wires or having them hanging from above. The best plan I can come up with is to use a 4x4x4 PVC J-box with a blank cover and set it 1/4" below the surface with a slightly...

I just bought a sample 6 bulb 4' t5 light to see if I want them in the new shop. The building I put it in for a test is 24 x 36 with a 12' ceiling, as the old t-12's gradually died off I replaced them with 300 watt incandescents. As a test I hung the t5 (6 bulbs @ 54 watt = 324, tag says total...

I want to put some runs of pex and some drain pipe underground for a future bathroom before I pour my floor. I'll be stomping on the subgrade with a 10K vibratory roller so is there any precautions for not damaging the pipes? I guess the pex could just go inside a piece of pipe insulation or...

I've been following the 400 amp service thread with interest and picked up some good info there. I think I have my service figured out to where it enters the building. 400 amp meter then it looks like the exterior disconnects are going to be required. I'll have 2-200's. Question number 1 is...

I'm looking at some installation standards from my power co for 400 amp three phase. It shows their primary voltage lines going to their transformer which is on the ground, then to My CT enclosure which contains their current transformers. I understand the transformer reduces voltage down to my...

How do the pex tube uncoilers work? I've just seen small pics of them and never heard an explanation except "you need one" from the guys selling them.

In one of Dan Holohan's books it says you can locate hydronic lines in the floor when the heat is on by mopping some water on the floor and you'll see a line over the tube where it drys first. Anybody tried that? Might come in handy when you want to anchor something down, rather than trying to...

This is a pole building, walls are just metal siding over the girts. I'll be framing in the walls and sheetrocking inside. Planning on R-19 batts, should they have the facing or not?

I'm getting ready to do the floor in my new building. Putting in pex tube for heat and some "deadman" anchors for pulling on whatever might need to be pulled on, They'll be a 10" square piece of 1" plate welded to some 4" tube and set down in concrete about 4'. The plate will have some drilled...

I'm getting ready to do the pex for the slab in my new shop, 40x60 main with a 20x60 wing on each side. Each wing will be a seperate zone with 4-300' loops and the main will have 8-300' loops in either 1 or 2 zones, not sure yet. What I'm thinking about doing now is running some extra short...