The overflow line must run entirely downward by gravity. Do not join the overflow line and the drain line together; they must remain independent. 4. Commissioning and Testing
Connect the incoming hard water to the "In" port on the back of the softener. harvey hv3 water softener installation manual
The Harvey HV3 requires a three-valve bypass system. This allows you to isolate the water softener for maintenance or moving house without shutting off the main water supply to your entire home. The Three-Valve Bypass Configuration Controls hard water entering the softener. The overflow line must run entirely downward by gravity