we went with a salt-water filtration system in our pool this year....very easy up-keep and didn`t have to add a thing to it!! stayed crystal clear all season!! not tryin` to put you out of a job or anything!!LOL just sayin`!!
I installed many of those over the summer, and repaired a few too. Stuff like that won't put me out of a job...I do repairs of pumps, filters, linings, etc, etc. I couldn't give a damn if someone elses pool is green, they need to hire a pool boy for that ;-)