So, what do people with DE filters do? I've got one so I'm trying to figure it out.

Are they just expected to buy a seperation tank to filter out all the DE? Because that would make DE filters twice as expensive as any other style.

I don't have a seperation tank and everytime I drain, I have no idea what to do with the out pouring water with DE mixed. You can't dump that in the sewer, or your lawn, right?