Using an ash catcher with a bong is relatively straightforward, although the exact steps may vary slightly depending on the design of the ash catcher and the bong. Fill the bong with water as you normally would, taking care not to overfill it. Depending on the type of ash catcher, you can also fill it with water above the diffusor slits for an even smoother smoke. Once filled, insert the ash catcher into the bong's joint and then insert the cone piece into the joint of the ash catcher. Pack your cone piece with your desired amount of cannabis, light the herbs and begin to inhale slowly. This will draw the smoke through the bowl and into the ash catcher. As the smoke passes through the ash catcher, it will be filtered and cooled before entering the water chamber of the bong. Inhale the smoke from the bong as you normally would and when you're finished smoking, carefully remove the bowl and ash catcher from the bong and dispose of any remaining ashes or debris. Rinse the ash catcher with warm water and allow it to dry completely before using it again. It's important to note that while an ash catcher can help keep your bong cleaner for longer, it's still a good idea to periodically clean both the ash catcher and the bong to ensure optimal performance and flavour.