[SkidmoreGarage]

I also built a DIY charcoal canister for the fuel tank and rear end vent. I really don't like a smelly garage. I did some research on what people have done, and the off the shelf solutions (IImuch makes an attractive option). It sounded like most people use activated charcoal as the filter media and put it in a PVC tube (or similar).

I used an SMC compressed air water separator as the filter and charcoal canister. It is open to the air through the filter vent, and the two inlets are separated. Time will tell if it works as I think it should. I'll mount it up in the frame.