Just be careful that you don't throw good money away, chasing an "Intex" solution. You need to keep in mind that usually the MARKETING department determines what the CUSTOMER SUPPORT department can and cannot say. And sales types go into stuttering fits when they have to say, "Our product doesn't work in that situation". So usually, they dodge, obfuscate and prevaricate. If you aren't wary, you can end up spending a lot of money discovering that for yourself.

On the other hand, if they can fix you up with a DE filter for your pool, THEN you can deal with the problem.

Regarding the Y -- there's no comparison. By state code they MUST have filtration system that is far, far more effective than yours. Again, if you had an effective filter, I would have given you a different answer. I've personally run two pools with manganese contamination, one 180,000 gallons and the other about 320,000 gallons. The smaller one with a sand filter was a nightmare, but we worked it out. The larger one had a huge vacuum DE filter, and it wasn't too hard.

Ben