Thread: Best way to remove tumbling dust

Tumbler dust you can expect to be most toxic. From fired primers mostly. Lead compounds. Use your favourite additive so there is no dust rising up when separating brass from media. I've used Serious Shooters stuff, a Hornady one, also car polish. Various recipes online for making your own. If you get your media too wet it clumps. If too dry it gives up dust. If you use it for too long it leaves black waxy stuff on the brass. Then its time to wash the media. Put it in a bucket, add hot water and dishwashing liquid, stir, drain (old pillowcase helps), repeat, then rinse with cold water until clear. Drain again, spread in large plastic container to dry. Sun helps, as does stirring and mixing once a day. Media will take several days to dry. I get two years between washes. Have used same corncob media since 2005 with washes every 2-3 years and topped up with new.

I repeat if too much additive it clumps, if not enough it gives dust.