Quote Originally Posted by BigDave View Post
I think the law is three feet. Four or five feet would be safe. The idea is to prevent entrapment - so, far enough that one person can't cover both at the same time.
No, I meant eyeball returns, not drains...

Yeah, I looked up the national code on the drains... Five feet are the preferred spacing, so for the dual main drains 5 feet it is...

I will be adding dual drains... Ordered everything up today that needed to be and bought the rest of the SCH40 2" fittings locally... I am putting in dual 2" main drains teed into a single 2" line... Since everything else is 2", why go with 1.5" on anything is my thought...

Also, I will be hardpiping them with 2" SCH40 PVC just like everything else... I figure why use flex PVC underground since there are always concerns about leaks and issues over time... seems like properly run and solvent-welded SCH40 PVC or even black poly tubing are the preffered methods...

I also figure the hardline with the tee in it will afford for a more solid mounting of the drains... I don't think I really want to mess with using concrete to set them... I figure I will mount them about 1/2" down from the top of the 1.5" foam floor and compress the foam around them so that it kinda funnels down to the drains... That way the kids will be less likely to mess with where the vinyl connects to the drain top... I also hope the foam coupled with the hardline piping should make them pretty stable long-term...