On another thread, one of you stated that to add a deeper rich finish you can blend in amounts of clear with the base. What I was wondering was, if after two coats of my DRU, and I was going to switch to clear- Can I skip cleaning the gun out, and just pour in the clear and mix? Or would the results be diasterous? The other thing was, what do you do with the paint cleaning solvents after your done using it? Pour it down the drain?