"philkryder" wrote in message
oups.com...
Somewhere in here, I would have the hardness tested to obtain a
hardness in GRAINS reading.
I've not heard of PPM for hardness.
You need to know the hardness to use it to set the softner controls for
hardness and gallons of water used to ensure that recycling occurs at
the correct frequency.

Good luck!
Phil
I didn't catch that the OP was talking PPM rather than GRAINS. Makes a
difference...I just assumed GRAINS

Tom G.