Connecting Water Softener Discharge Into Sewer Line

A softener drain line must not be connected directly to the waste system but must be emptied into a laundry tray floor drain or properly trapped special outlet preserving an air gap of at least two times the diameter of the drain line but in no case less than 1 1 2 above the top of the receptacle used.

Connecting water softener discharge into sewer line.

For this purpose you will need same set up like for washing machine. Softener backwash discharge is under pressure and can be routed vertically some distance. The manual says the drain can be extended upwards of 6 ft. By code water softeners must be emptied into a laundry sink floor drain sump hole or properly trapped special outlet preserving an air gap of at least two times the diameter of the drain line but in no case less than 1 1 2 above the top of the.

I have a less than ideal situation of my water softener draining into my sump pit. There are actually three ways the sewage can get back into the drinking water lines. However its in basement and has to travel upward of 6 8 ft. This is to prevent non potable water from flowing backwards possibly mixing and contaminating potable drinking water.

So i am good for 8 ft. This is just such an unconventional approach. The shortest easiest way is to tie it into the underground sewer line. An addition ft for every 10psi past 40.

That means p trap and stand pipe. According to most plumbing codes a water softener drain line must not be connected directly to the household waste system. From there they can drain naturally to some sewer access point in the house. You cannot run water softener discharge line directly into sewer.

I would like to instead drain it into the sanitary sewer. Air gap and check valves are both good idea since it is an extra precaution that sewer won t enter your softener.