My existing 300# sand filter has a crack a couple inches from bottom. Not sure how it happened, but after I noticed that my water was going down I checked my fittings and found they were all okay... then found the crack.
I now have a new Hayward 300# filter and was wondering if I can use the old media in the new filter? Since I used pea gravel to cover the laterals in the old filter the sand will have some peas in it. I was thinking I would use the old media and just put a new 50# bag of sand in for last few inches.