I only use dry pipe cleaners, and rarely during smoking. Usually only when there is an obstruction. I use them liberally to clean after a smoke after running cold water through the stem, paper towel to remove a layer of tars etc. Then, a warm water rinse of the bowl followed by cleaners followed by reassembly and then a nice whiskey or rum into the bowl drained through the stem. Another cleaner to dry out any liquid left and a day, two or three to dry on the rack. Gives a nice, sweet and clean smoke.