As stated in a different thread, I always manage to get some DE back into the pool after a backwash/recharge of the filter. Furthermore, it is not all that easy to clean up, considering I do not have a manual vac head & hose. I am also lacking a sand/silt bag for the polaris at the moment, so I made my own.
Threaded a knee high through the general purpose polaris bag and voila! transformed it into a very fine filtration device that picks up DE like a mug!
Added benefit: No need to rinse (don't want DE in my yard), just remove and chuck in trash.