This is a 1/4 inch coil snake 25 feet long in a hand rotator device. There is a knob ( 1/2 inch ) on the front and is an expanded part of the coil. Son-in law sent this down the bathroom sink drain with the trap removed. There was resistance for about 15 feet and then it started going freely. Now it will not come out. It is in about 20 feet. Any sugestions will be greatly appreciated. Thanks in advance.
Don in Colorado