We are based in Georgia, have a 1 acre pond, use a three head aerator and treat the water with bacteria (Bait-klear) and Cutrine. The water quality appears ok, and weeds are controlled (courtesy of grass carp).
We have a white-ish film that appears in one shallow area of the pond (picture attached). When we have a rain shower the film disappears however it re-appears the next day. We don't think this is due to dust and it happens at times of year when there is little pollen (e.g. mid-Summer).
