I would like to install a water softener in my garage. The pipes in the house are set up for hard (cold) and soft (warm) water. However, when they built the house, they forgot to put a drain anywhere near the water softener. The drain is needed to dispose of the brine after regenerating the resin in the softener.
OTOH, there is a 3" ASB vent stack/drain in the wall right behind the water softener. It has a threaded 3" cleanout plug about 3 feet from the floor. The clean-out is in the vertical section.
Originally, they just drilled a 1/2" hole at an angle in the clean-out plug and fed the 3/8" copper pipe for the brine though the hole into the vent. Somehow that does not look like being code compliant, with sewer gases and all.
Is there any legit way I can replace the cleanout plug with a j-trap into which I can then feed the 3/8" brine tube??
It would probably be some kind of Rube Goldberg construction. Just how would I convert the plug to a j-trap? What kind of parts?
Thanks a lot!