I've had the same sand filter for 15 years and have been generally happy with its performance, this year no so much. I've been slamming the pool for two days and the clarity is little improved. The filter doesn't seem to capture the algae unless I introduce 1/4 cup of DE. Within and hour the filter if ready to backwash. Is this normal? After researching the subject if appears that The DE filter provides superior clarity. Thoughts?
Taylor K 2006
Taylor K 2006