battling green algae while cya = 0

[vinouspleasure]

thanks, should be in my signature now

[Watermom]

Welcome back!

Any idea what your CYA reading was when you closed? Since it is now 0 and you have a big chlorine demand, it's a good bet that your CYA biodegraded over the winter and you are now dealing with the results of that. It may take a lot of bleach to clear the pool of the byproducts, but hang in there and keep hammering it with bleach!