Please start your own thread when you have a question. Butterfly
"Lower FC levels are often sufficient at higher CYA levels although it may take longer to kill algae"
Is this just talking about shock levels? Also it shows lower FCC levels for SWG? Why would that be? Does the salt somehow provide additional sanitization or the fact that it keeps the chlorine more constant? I would think a pool with borate could be even lower than SWG. Is there anything that takes into account borates or other things that claim to reduce chlorine usage?