Repel-Aide Bong Life Grinder Cleaner / 12oz Kit w/ White Cup Cap, Microfiber Towel. Bristle Brush

Enough to cover the downstem slits by about half an inch. Too little = no filtration; too much = splashback into your mouth. Test by inhaling gently before lighting.

Empty water after every session. Deep clean weekly with 91%+ isopropyl alcohol and coarse salt — see our 7-step bong cleaning guide. Don't pour boiling water on cold glass — borosilicate is heat-resistant, not heat-proof.

A percolator is the part that diffuses smoke into water for cooler, smoother hits. Showerhead, tree, honeycomb, and recycler are common. Recycler is the smoothest; showerhead is the most balanced. Read the bong shape guide for the full breakdown.

Match joint size and gender (male/female). Most modern rigs use 14mm female. Read the joint sizes guide if unsure.

4-piece has a kief catcher in the bottom chamber — kief accumulates over weeks of use and can be saved or smoked separately. 2-piece is simpler, no kief collection, easier to clean.

Disassemble fully, brush out kief and resin, then soak in isopropyl alcohol for 30 minutes. Rinse with water, dry completely before reassembling. Don't put in dishwasher (warps aluminum).

Yes — non-magnetic lids spin while you grind, leaking material. Magnetic = tight seal, no spilled flower. Worth the extra few dollars.