Shed Expansion Project

[Gotcha6]

I asked a plumber working on my project the other day about PEX pipe for air. He said it's rated for 150# of pressure and is less susceptible to shattering than PVC if it is struck. We use it in dental upfit applications below slabs all the time. I'll be using it instead of black iron when I pipe my shop. He says the black iron is more susceptible to moisture buildup too. Copper pipe has become so costly that it is out of the question although I'm capable of soldering and even threading the iron pipe if needed.

[Tarhead]

This is a ways off but here's my plan:

I will cut a ~6.5" hole into the extension from the shed and run the compressor hose along side the 6" D/C pipe. The hole will be lined w/a soft foam grommet (foam pipe wrap cut lengthwise). Filtered make-up air for the D/C will come back into the shop through a few 16" wide HVAC return grates installed between the shed and an airtight cabinet housing the Cyclone exhaust filter.

Hopefully my daughter's bid on a house in Louisana will go through next week and I can load up the truck with all of her stuff in "Dad's Free Storage Place" when we go down there in a month. Then I will stimulate the economy by calling an electrician and buying some insulation.

[meika123]

Right you are, Dennis.
I have Rental property and replace all my piping with Pex whenever I have to do a re-do. Not only that, it is much easier to use, and a lot faster. Also if it freezes, it won't expand like most of the other piping. I think a piece of Pex inside a 3/4" PVC might be a workable situation.
Thanks guys

[Glennbear]

I do not know about PEX but I would stongly recommend steering clear of PVC. If struck or it fails a blizzard of razor sharp shards would follow I will be taking the iron pipe route when I pipe the shop since I am fortunate enough to have a threader. Our download library has a good article on how to air plumb a shop.