Thanks for the information Carl. I will get the specs on the pool and equipment in a later post. The only chemical, other than tabs, is occassional chloring shock and weekly treatments of phos-free. I generally put in three capfuls of the phosfree and add the tabs weekly to the chlorinator. Generally speaking, I think I have been lucky so far but I do like the idea of taking better control of the pool and using chemicals that I can source outside a pool store. I will work on getting the kit ASAP and update the other specs as soon as I can.