Hello everybody I hope I have set up my signature and all correctly! First a little history. Had this home and pool for 6 yrs, always been the pool boy and never really ran into anything more than mustard algae. This year my 15yr old was taking over but can't seem to keep it clean and holdin chlorine. Started online and found this wonderful forum and here I am. Prior to this I only used basic kit for chlorine and ph and occasional alkaline. Here are my numbers with the new TF-100.
pool math is telling me to lower ch a 53% water replacement and to lower cya a 50% water replacement is needed. My pool is clear and sparkly with a touch of mustard coming through on walls.
All i I need to know is if you all recommend the water change and if so what about chlorine level being so low whilst I drain because I am gonna need to go to harbor freight and buy a pump because my filtration has no backwash or drain.
thanks in advance everyone.