I'm getting tired of my sand filter taking several days to clear cloudiness after a pool party. DE seems to be the obvious answer, but I have some questions:
1) How do I know I'm getting the right kind? (Is it sold places other than pool stores?)
2) What is the shelf life? (Buying in bulk can be less expensive.)
3) Will sand need to be replaced/added sooner because of more frequent backwashing, or is this "theoretical" idea too insignificant to be considered a factor?
Thanks in advance for the help!