What screen are you using? The double-weave titanium screen keeps my rig particle free...however, if you're just using the glass bowl with it's honeycomb screen, a lot can get through that. I hear many just adding the ti screen on top of that.whats best way to catch herb particles? my rig gets gunked up way too fast, and the gunk is hard to remove, big spots on the walls
other than that, I have a bunch of iso and I clean my rigs at first sign of gunk building.