I do too. I’ll (sssshhhhh) do a run and instead of recovering it, I’ll just vent it out and turn on the exhaust fan. And because my tank is such a big fat whore. I’ll use an entire tank of nitro, hook it to my liquid line, crank it wide open and blast out the remainder of the solvent that wouldn’t exit through my tube. Which is like 10-15 lbs. And just keep venting until she’s empty. Start pulling vac again until I get her as low as possible on my my micron guage. Got down to 20 once. Redo my sieve, blow everything out my my recovery side and pull vac again. Start from scratch. I always notice moisture building up on my coil in my tank.
I want to make little grenades of carbon. Some large grit, finer grit, and finer. Wrap em up in a big ass coffee filter and stage the, 3a then the (now) 13x after. I bet that’d stop it for a run. Hopefully. I know @Photon_noir has a way of doing his sieves and I believe nboler uses the same packing in his sieves that come with his systems