Steve,

We need water analyses from your City and well water for us to give you better advice.

I too live in Florida near Orlando, and do not use well water, as it would destroy my SWC cell. Too much bad egg smell in it.

Go with the City water for the moment, and keep your pH down to 7.3 to 7.4. If you can aerate using Ben's method in Alkalinity and Calcium forum, you should be able to bring the TA down.

We cannot suggest how much bleach to add until you give us a pool water analysis.

Pat