I'm working on a LARGE pool, 1/2 olympic I believe. There is an algae problem (some blotches on the bottom of the pool) which has created a "boatswimmer" problem (only in the corners). One of the guys hit the panic button and wants to drain the pool.. Is this the most sound way to treat the problem? According to what I've read on this incredibley informative site, draining may not be the wisest way to go. It's a chlorine pool:
FC ON AVERAGE 3.5 but it has dipped below that number often.
We have a liquid CL injection pump. However, I believe that from constant adjustment by my peers trying to find a "sweet spot" that holds the FC level at 3.0-3.5 ppm constantly, the pool has been unbalanced for some time. Also, I've read here that 3.0-7.0 FC is the range which leads me to believe that 4-6 ppm FC is a better range to hold. So to drain or not to drain....?? A confused plumber tasked with a pool... sigh.