@humdinger is correct. And yes, I do "salt" the Zeolite with the color changing silica beads. The ones I use are orange and turn green when moist - to me it looks like a dark brown, but whatever. 
Just a teaspoon or so is fine. After checking the "gold" filter at the 7.5 hour run time, it was time to change out the Zeolite, at least for me and the two cylinder Tuxing. I'd recommend if living in humid climates to change out the Zeolite every five hours run time just to be safe - with the two cylinder Tuxing, AV or Hatsan compressors which are pretty fast. If you have a slower compressor like the AC, I would recommend every ten hours run time. No point in trying to bake and re-use, since you can get 3 pounds for $15 and it'll last you for years...
Just a teaspoon or so is fine. After checking the "gold" filter at the 7.5 hour run time, it was time to change out the Zeolite, at least for me and the two cylinder Tuxing. I'd recommend if living in humid climates to change out the Zeolite every five hours run time just to be safe - with the two cylinder Tuxing, AV or Hatsan compressors which are pretty fast. If you have a slower compressor like the AC, I would recommend every ten hours run time. No point in trying to bake and re-use, since you can get 3 pounds for $15 and it'll last you for years...Upvote 0
