Installation of Auto Shutoff Valve:

The Auto Shutoff valve has 4 connections as follows: -The side with the marking (IN) is connected to filter #3 -The side with the marking (OUT) is connected to the input of the membrane cap stage #4 -The side with no marking with screws, it’s called the screw side of the “in” is connected to the check valve -The screw side of the out is connected to the tee fitting of stage#5 inline carbon filter