Pour Iso and salt in the top, and into the bottom. Shake it like a Polaroid picture, good rinse. Boom.
Formula 420 is the bomb. I use this product but get no money for endorsements. The one I use you just pour it in and shake. It has little crystals like salt or maybe they are salt crystals idk. 1 minute clean. Rinse well. It disinfects and makes a used bong sparkle. Makes it near brand new. Amazing stuff. Good luck. Formula 420 - The Most Complete & #1 Selling Product Line in the Industry