Water Softener Drain Pipe Size

According to most plumbing codes a water softener drain line must not be connected directly to the household waste system.

Water softener drain pipe size. This is to prevent non potable water from flowing backwards possibly mixing and contaminating potable drinking water. Water softener drain adapter outlet box 4m length upvc soil pipe waste dual air gap for water softener and water softener drain line plastic water softener air gap pp855 69. It s standard procedure to branch off one cold water line to supply outdoor hose connections and sometimes another to the kitchen sink and refrigerator icemaker if you don t want to drink softened water. Universal multi drain air gap for condensates water softeners and water filters with 1 2 inch and 3 4 inch pvc and copper pipe adapters 4 7 out of 5 stars 7 29 24 29.

On water softener service calls in minnesota we find a wide variety of drain line material being used. A physical air gap of at least 3 inches 76 mm between the end of the drain line and the wastewater level in the drain pipe should be used to avoid contamination of the line. By doni anto february 20 2019. 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.

This is where widespread incorrect information found on the internet and elsewhere can hide the real answer. Many of the home improvement stores sell big box water softeners and installation kits to get them connected. Water softener drain pipe size. So what size of water softener offers 21 000 grains of total softening capacity.

The industry standard is a polypropylene drain line that is rigid yet flexible. A quick look online and in many stores will reveal an abundance of 24 000 32 000 48 000 and 64 000 grain capacity water softeners.