New to site...I have an 27' above ground pool, was told and to and have used EZ Pool for 2 years. Ive never had a problem with clarity at all. I have only shocked a few times after heavy rains as a precaution. I have a DE filter, so was told when i put it in i don't need chlorine, other than the weekly maintenance of 1 tablet in the skimmer weekly to kill algae inside the filter. Do I need chlorine for any other reason other than to kill algae? The DE filter catches the algae and we really enjoy not having to maintain the chlorine level not to mention the skin/hair issues that come with the chlorine pools! EZ pool is really expensive but with busy schedules, it is almost maintenance free...Should I be using something different? Thanks for any help!!!