I’m in the process of building an addition to my house (15′ x 28′). The bottom part will be my workshop with a bedroom on the second floor. I was wondering if I should install dust collection pipe under the slab? What kind of tubing should I use (4″)? I’ve used above slab abs piping in the past with no problem. Will that be ok underground?
Tx for any input
Replies
In my shop I formed an 8" wide trough in the slab from one wall to where I located the table saw. This is formed with notches along the top edges to receive plywood (or steel when I get around to it). In the "utility trench" I have a 6" dia. steel duct and my electric power to the table saw and 110 to my benches. I can also run air in the trench. A fellow woodworker advised me to do this. He has had stuff stuck in his cast in place duct. I really like the ability to change my electrics any time I want. The plywood cover is no hassle at all. I highly recommend this. But, do as I failed to do.....run the trench all the way across the shop. Mine stops just short of where I ultimately placed my jointer. So it uses a big shop vac and I have to power the jointer via a long cord.
Hi,
I've considered the same for my soon-to-be-built shop. I am going to do that for the electricity (just for middle-of-the-room tools; table saw, jointer, etc) but am concerned that if I run 4" pipe in the slab it will 1) weaken it and 2) dust, wooden blocks, etc occaisionally get "stuck" in my 4" dust collector pipe. If it is buried in my slab, I'll never be able to clear it out..
Good luck..and post pictures as you build!
lp
Sure, great idea. I'd suggest that you add a couple clean out ports just in case it plugs up and put a 1/4" nylon lanyard from end to end to help clear jams.
I think PVC would be the thing to use. Won't deteriorate and can be made water tight, and important consideration for under ground.
Dave of Florida
I did this in my shop. I used 4" black ABS drain pipe. It's not too expensive, is made to run underground, and strong enough, I thought, to install permanently.
The pipe actually isn't in the slab, since the slab itself is only 4" thick. It's in the crushed rock bed that runs underneath the slab.
I glued pipe and fittings with ABS glue, so it's waterproof and immune from ground moisture. The 4" fittings have such a large radius of turn that I don't think clearing them out with a plumbing snake would be a problem, should the need arise. Such need hasn't arisen up to now.
'also put 1" PVC conduit in the slab for power.
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