4 in. x 10 ft. PVC D2729 Sewer and Drain Pipe

YES, and Highland Woodworking & Peachtree Supply have the CORRECT 4" to 4" adapter to connect to the dust system, w/o any pipe cutting or silicone. I wrapped the seam (maybe unnecessary) with a bank of duct tape to stop even any small air leak, but the fit is near perfect.

If you have roots in the area, cementing it is a must. Otherwise, friction fit is fine. Roots that are thirsty will grow enough to break the pipe. This doesn't always happen, but when it does, it will ruin your work, usually a few years later. Then one day you find your drainage isn't working anymore. The root not only breaks the pipe, but inside it grows into a fibrous mass and traps all dirt and grit, eventually clogging the pipe.

Yes. Two, one at either end.

No. The plastic will bow from heat. So will schedule 40. You need to use duct work or metal.

Can be purchased either way. Needless to say solid for dust collection. PVC will make for a static charge, should be grounded for dust collection. Check PSI on pipe, larger # the better.

I doubt it, my truck broke mine and they weather poorly. You might want to use metal under anywhere your car will pass.

They look for people like you.

NO! No way.

As much as you want, but it will bend and break very easily!

Yes, it should be.