A few days ago I removed the filter cover on my jacuzzi J375 to do some cleaning, and I notice one of my filters is floating. Well, the threaded part on the bottom of the filter broke right off, and the threads were still in the hole. I have no idea how this happened, as the cover never comes off except for cleaning. I asked the kids about it and they shrugged their shoulders. Did I tighten them too much or what? The filters are only 1 month old. I talked to the dealer where I bought them, and he said he will replace it, just bring in the pieces so they can take a look at it.