Plumbing advice, tie into house drain?

[chwkreefer]

Originally Posted by smokinreefer

Ah yes, i forgot about those.
I suppose i can use that for the RODI drain, but also for the RODI input, of course on a water line though?

It's just an option to consider... certainly the saddle drain valve. You may have to check with your local building code to see if saddle valves are permitted on water supply lines in your area.