Time to join in the fun, I'm a new member who recently purchased a house with a used 1995 pool. I look forward to educating myself and soaking in as much as my pee-brain will tolerate. I'm still trying to collect stats on the pool and I need to ditch the 3-way test kit for something more informative, so my questions can be answered more thoroughly. Aside from some high TH & TA, and some severe copper deposits everything appears to be running fine, but I don't want to post results until I get a better test kit and have a store test it as well. One thing I can say is it appears the previous owner/pool cleaner thought excessive hocky-puck chlorination was the answer to everything, even if it means replacing their heater core. Anyways, it's good to find a place for pool people who like to do things for themselves and be involved in the process, take care...Jason