phosphate sponge particles in water

[treesprite]

I put a bag of Kent phosphate sponge (which is a ceramic media) in my sump yesterday, and I guess I didn't rinse it well enough, because today there are a lot of little dust sort of particles in the water. (I took the bag out, since it isn't supposed to be in more than a day or two at a time; there were little particles on my hands from it, which helped confirm identification of what is in the water).

 

I am wondering if it will just settle on its own and would be safe enough for me to let that happen, or if for some reason I need to get it out of there faster than it can get itself out. I have my drain pipe going into a filter sock.

Edited October 27, 2018 by treesprite