Thanks for your response, Dave. I was amazed at how good and clear the water looked when I took the cover off.

I will review my test method for CH. You are right, the water turned red, then clear after about 20 drops and stayed clear. I'll drop off a sample at the dealer tomorrow just to be safe.

After all the 'green swamp' stories I have read on these forums, I had expected our pool to look at least a little funky. I'm certainly not complaining.

Doug