Hi Herb;

1. Don't let it go green -- add a bunch more polyquat and a little more chlorine.
2. Check your chlorine again to make sure it has no copper.
3. Have your pool store retest again, BUT, take some bottled water with you and ask them to test that TOO. Say, "I want to see if my drinking water has copper in it." (No lie ;-) If they find copper in that, the copper reading is probably just testing error. If they do NOT find copper in the bottled water, but DO find copper in your pool . . . you probably have copper in the pool and we need to figure out why.

PoolDoc