Got a new cleaning snake on the internet, the kind with bristles on one end. Cost about seven bucks. The bristle diameter was larger than most snakes, but not as large as a valve bore cleaning brush. Shoved it up the third valve slide and went to pull it back out - wouldn't budge. Tried twisting, a little turning, then pulled harder and the cable simply broke off the brush, leaving the brush lodged in the crook of the slide. Got a refund. Couldn't get it out so had to take it to a repair shop. Repair shop charged $49.00 to get it out. Bought a new snake for $9.00. Total cost of trumpet snake: $58.00.