Originally Posted by PackerfaninSanDiego
so other than soaking and rinsing, there is no other way?
Actually there is. They're called brushes. The long 3-6' ones. Brushing cleans better than soaking and rinsing alone.
You could tie a wad of fabric to a string. The wad will scrub the walls as you pull it back and forth. Some are successful with just a wad and some faucet pressure. Use some soap or PBW.