Lateral-g Forums - Help With Air Compressor Regulator Piping

PVC is out. It is dangerous and is not designed to be used with compressed air.

Your set up looks fine. Since you have gone thru so much, throw another drip leg and drain at the bottom of that last run before you go into the filters.

The correct set up would be a coalescing filter, then a filter regulator combo into a desiccant dryer. If you were really concerned about paint quality, an after filter would be required after the dryer.

As far as black pipe is concerned, I see it in plants everyday. The key to preventing rust in the pipe is dry air. Desiccant dryers are easy to maintain and inexpensive for a home shop as opposed to a refrigerated dryer. I am not familiar with the HF unit, but for the price, it is probably worth a shot. The Wilkerson unit has an indicator that changes color that tells you to change the desiccant. Just empty the wet desiccant onto some aluminum foil and pop it in the oven. 200* for 2 hours or so drys it out and makes it reusable.

Let me know if you need more help.

Darren