Re: High CYA and therefore high FC levels. Is it safe? HELP!
Have almost emptied the pool, having decided that there is no option apart from that to lower the CYA of 380. We will refill over the next two or three days. This time, we are using our well water which has a very high iron content, so we will need to use flocculant and get the solids removed. After that, please could someone let me know in which order I should do things. I think it is to raise the PH first and then to shock. I want to try to follow the bbb system to avoid raising the CYA again. We have only managed to source 5% bleach here in Italy. We will try to find liquid chlorine but I am not holding my breath. Obviously I will do the tests and post them, then could someone talk me through the amounts I will need to use. I am fighting my partner as he wants to use the Dichlor to shock the pool initially, but I am desperate to try to avoid raising the CYA which will possibly still be 50 or so, because of the residue of water we are leaving in the pool ( vinyl). Thanks to all for your help and encouragement so far.