Quote Originally Posted by stslimited84 View Post
On the multiport, there is a clear plastic half cylinder with water in it. This piece of plastic with water has green algae in it. Is the algae in the plastic half cylinder cause for concern?
No. It's the multiport backwash sight glass, and has no contact with circulating pool water.

On hot sunny days, you could definitely lose several ppm of chlorine by noon, with CYA=25ppm or less

I have no advice on landscaping, except to avoid 'crap myrtles' like the plague -- those things poop in the pool year-round! -- Seeds, twigs, leaves, petals, etc, all year long.