Hi All. So i'm a huge fan of the BBB method. I evengot two of my neighbors to use it. Last year my pool stayed crystal clear the entire season with ver minimal maintenance or expense. This year, however, i'm having a really hard time with Algea. I can't seem to get rid of it. YES my pool is properly balanced (my CC has been 0 or very close to that; PH 7.6; TA 80; CH 110). My FC has been fluctuating with based on CNY. The CNY is currently at 45 and i'm aiming for FC of 4.
I find that i keep getting algea growths, I shock and get rid of it and then it comes right back a few days later.
I have a Hayward sand filter which i usually backwash every week or two as pressure builds. However, this entire season the pressure has never raised and slowed down the flow. (I have backwashed a couple of times after shocking, but not because of pressure drops) Why would that be?? Could that have anything to do with my algea problem?
Any help or advice would be greatly appreciated as i'm at my wits end and even considering going to the pool store