Quote Originally Posted by SnoopysGirl View Post
Yes, I do know the pH of my pool, and also the alkalinity. pH is at 7.7 alkalinity 130. Seems good to me.
Agreed, if your pool's been around 7.7 pH and 130 TA your heater is not the source of the copper unless, maybe, the chlorinator is plumbed in wrong. It should be the after the heater in the water's trip back to the pool and have a means (check valve) of stopping the chlorinator from flowing back to the heater when the pump is off.

Where can I find the information about easy pool care?
The Pool Guides on poolsolutions.com are a great place to start along with the forums: Using Chlorine and Chlorinating Chemicals, Testing and Adjusting Pool Water Chemistry, and (for your copper) Dealing with 'Minerals', 'Ions', Metals & Stains. And, of course, you'll need information about your pool water itself and for that you'll need a Taylor K-2006.