Last year I replaced the sand in our filter with Zeolite. I think I may have underfilled it a bit. We had a very small amount wash out over the summer. Fast forward to this year I am in the process of slamming our pool for algae. After backwashing each time I noticed there is more and more Zeolite washing out of the filter and the pool is taking a super long time to clear. Over a week into the SLAM prob at the 9 day mark. Is it possible that the under filled filter is washing the media out because it is under filled? I know it could be a broken lateral etc but really wanting to see if that could possibly be the problem.