I have a clack ws-1 type water softener. Had the water softener installed at a different time from the rest of my plumbing and my Geothermal unit.

My geothermal is open loop aka pump and dump.

With Geo turned off and no one using water in the house, everything is fine. When the Geothermal system kicks on and no other source of water is being used, I'm getting a small amount of usage on my clack water softener. It is approximately about .5 gallons a minute WHILE the geo is on. When the Geo is off, there is no water usage.

So....Some how my geothermal unit is leeching a small amount of water through my water softener. At this time, neither the plumber/geo, or the water softener people are owning up to any problem. I'm hoping that some how there is a bad seal in the water softener that is allowing a reverse flow of water through the softener. Does anyone have an idea and what I might do to fix this?

Thanks

Chachie