Thanks a million Ben. I am amazed (and admittedly somewhat overwhelmed) by your lessons. Great info and lots of food for thought.

Two quick follow up comments:

1. I will go online and get the K1515 kit that you recommended. I checked and my Leslie's DPD is a re-branded Taylor kit.

2. My float full of tabs seems to hold me steady at only about 3ppm with a currently low CYA. Am I safe to add the daily doses of bleach as an adjunct to the floater to bring up my daily chlorine?

Thanks again.

Jim