HEY GUYS....I BEEN TRYING TO CLEAN MY 2 FOOT 420 GLASS ON GLASS WITH 420 INSIDE THE BONG THAT THE SMOKE GOES THREW FOR EVER NOW AND CANT GET THE BITCH CLEAN.... I TRIED THE RUBBIN ACHOHOL TRICK WITH SALT....CLEANS IT ...DOESNT EVEN LOOK CLOSE TO NEW STILL GROSS BUT HITS WELL FOR ABOUT 3...