Is the water clear with greenish tint, or cloudy?

If the greenish tint is from the copper,it will be clear water with greenish tint. In that case, you're either going to have to devise a way to filter out the copper, or just live with it, by using a metal sequestrant. You can read more of the posts in the "metals" section of the forum to get an idea of what you're dealing with. If the greenish tint is from the copper, then a high dose of chlorine is going to make it stain your pool green. Again, using the metal sequestrant should take care of it if the copper is causing it.

If the greenish tint is from algae, then you'll need to shock the pool (high dose of chlorine) to get rid of it. If the pool walls and floor are slippery feeling, or if you test your chlorine at night and again first thing in the morning before the sun is on the pool and you find that you've lost more than 1 ppm of chlorine during that time, it's probably algae.

Janet