Vortex diatom filter

[lastlight]

So in the process of coating the filter bag none of this stuff enters the tank? With it being so incredibly fine it's hard to believe none escapes.

I have worked with it as I worked at a kids camp for a few summer and helped care for the pool. There was a large DE slurry tank and you'd send some into the filter drum and then turn the drum. I never fully understood the setup I just followed the instructions lol.