Looking for Advice - Possible SWG Convert

[tonyl]

I didn't explain myself very well with the 100 minute cycle example. It operates as if there will always be 100 minutes to work with. In the last example of 200-240, there will only be 40 minutes of generation because although the generator is set at 50%, it won't know the timer will turn the pump off at the 240 minute mark. It "thinks" there will be a 200-300 minute cycle.

Chlorine demand varies greatly depending on a variety of factors like bather load, number of kids, etc. I have a wife and two young girls and my pump runs 8 hours a day at about 25% setting in the summer and free chlorine level at 2~ and our pool gets full sun. I also keep the salt level at the max. recommended level of 3400 which helps me lower the output setting for efficiency and cell life. CYA gets bumped up to 70-80 as well which also helps the chlorine stick around. So again, there's a few things that have to be considered relative to how much chlorine your pool will need.

Hope this helps, Tony