Ducks have been around the pool for more than a month. I chase them away, they come back. I just deal with the mess they make on the deck. This morning I woke up to lots of poop in the pool in addition to the deck mess. Chlorine demand has been increasing (which i couldn't figure out why), FC has dipped down below range a couple of times between testing. but pool has been clear, CC has been zero until today.
FC went from 7.5-6 in one day. CC was 0.5 today. first time taking care of the pool in the summer, therefore no records of normal chlorine demand for previous summers.
what now? shock? keep FC at a higher than recommended level?
even after shocking, ducks will be back. i'm just pouring chlorine down the drain. i haven't found any success in keeping them out. any help and advice is appreciated.