SWG and shocking

[davebva]

Thanks for the input.

Waterbear, I have CC of 1, but CYA of 0. PH and ALK are fine. Are you saying that when I get my CYA up to 60 or so that a FC level of 5 will take care of the CC, or will i need to shock to get rid of the CC initially? Of course I will check it once the CYA gets to a normal level, but I'm just curious.

[waterbear]

Algae starts to grow in the water column before it deposits on the walls of the pool. The SWG is constantly superchlorinating the water that passes through the cell and if you have balanced the pump run time and cell output it ususally takes care of it. You do need to keep tabs on your pH....it will constanly be climbing and that reduces the ability of the chlorine to sanitize. Many people with SWGs get lazy about keeping the pH in line and let it drift up high (around 7.0 to 8.0) and then wonder why they get algae or their FC is always low. I have also seen people that run their CYA low and they also run into problems. Most of the SWG manufacturers seem to recommend 60-80 ppm CYA and from what I have seen testing water all day the salt pools with correct CYA and pH kept in the 7.2-7.4 range seem to do the best and have very few problems.
Just my 2 cents!