I just replaced our sand filter with an AC DE-95 Filter. First time I set it up and got things running I added the DE powder as instructed thru the skimmer. It immediately blew out into the pool from the return. I called the pool store and they suggested that it could just be the force of the pump caused this. It seemed as if the DE was filtered out of the pool because we didn't see any right away. The next day I noticed that it had settled all over the bottom of the pool. Today I emptied the filter and washed it, rinsed out the filter and everything. Put it all back and I just can't seem to figure why the DE is blowing back out. I added the DE and it once again blew back out thru the return. Any ideas what could be causing this? From what I've read, DE powder should never be going back into the pool. I was able to vacuum it up, but some more came out again but not as much.