Great Experiment Evan!

I've been running 30-50 ppm Borates this year, and agree with your assesment on the feel and look of the water.

What would you impose for an upper limit on Borates? Is there a point of dimminishing returns above 50 ppm? What about 100? (Man Logic at its best; if 50 ppm is good, then 100 ppm must be better)