From post 2 in this thread Low Chlorine after algaecide
note suggests that algaecide consumes free chlorine. if so, adding it at winter closing seems counter productive.
does anyone have any info on what kind(s) of algaecide consume FC? or dont?
eg, polyquat 60; pool tech (Quaternary ammonium compounds, benzyl-C12-18-alkyldimethyl, chlorides )
Seems like i've read somewhere that ammonia will consume FC and wondering if the pool tech would.