I removed the sand out of my Aquaswim AQ 250 filter this morning to change the sand and found a 3 cracked laterals. Two of these are on the ends where it is slotted but not open all the way through and the other is where it connects to the hub. The one at the hub it closes when it sits on the bottom of the filter. I haven't had any problems with sand coming through but that could be because some of the sand was clumped and had a lot of algae in it around the bottom. The filter is manufactured by Speck Pumps-Pool Products INC out of Jacksonville, FL. I emailed them for a part number or other information. It looks like they have a newer filter out in an AS model but that's all I could find for parts. It's 25 Inches in diameter with 300 lbs of sand. Could I use JB Weld to fix it until I can find replacement parts if available? Here's a link to the AS model.