Is there a general consensus on a target water temp to shoot for when closing down the pool in the fall? I assume that the longer you wait and the cooler the water gets, the less likely you are to develop algae.
My local pool store is recommending Arctic Blue winter algaecide as the product to use when closing down the pool. However, it contains copper, and I've read that too much copper can cause problems (staining?). So, I'm worried about using a copper-based product (plaster/gunite pool). I've seen people at TFP talk about PolyQuat 60, and I don't think it is copper-based. I'm wondering if there is a difference in effectiveness and why I should use one over the other. I think my local pool store also has PolyQuat 60, but it's a different brand.
This will be my first year to close down the pool.