I am also new to pool ownership and have found this site has a wealth of info! I just got m 18' by 4' intex pool filled and waiting for my SWG to arrive within the next few days (Krystal clear). I just had a few questions about actually starting the pool up: do I test/adjust water before I run the SWG? Or just run it and see where it puts my chlorine level? I'm sorry for the vague questions but I'm not even sure where to start and that's what brought me here!!!