approved drain line material

So I called the local building inspector and talked to him about installing my water softener. I told him that I plan on draining the unit into the floor drain, and he is fine with that, but he said that I must have an air gap of a couple of inches, and I must use an approved material for the drain. He didn't elaborate much, and was in a hurry to get out the door to do inspections.

I was planning on using PVC....but can poly tubing be used?

Poly tubing is fine ... but do you know where that floor drain goes? Does it just dump under the slab or does it head out into the woods. I would solve that mystery before using it.

The drain heads outside.....

drain

quote; The drain heads outside.....

Don't they all? Where outside?

I think the guys your bought the softener from should be telling you what and how to do the drain. I do.

I think the guys your bought the softener from should be telling you what and how to

Sounds like me when it comes to all these hydronics questions.