i bought the total kit from this site, but have not started using it yet. I have just been taking samples into the store and using a simple kit I got a Walmart to test the chlorine daily. The pool does get full sun all day. (Fresno, CA) I have a CYA of 30 ppm and would like to use as little chlorine as possible.
In order to keep my chlorine in the proper range, (1-5 ppm) it seems like i have to add daily. I was wondering how pool guys are able to add just once a week.