I have a crystal flo ll 145361C.. We are new to pools so my ?? Is we went with zeolite instead of sand. Mistake i think will change next season. But the pool co. Told us all we needed was 100lbs this is a 250lbs filter. We can get clear water but i cannot keep it for more than a few days. Should we goahead change to sand or buy another couple bags of zeo .. What do yall think