When my lee pot goes to dripping I hold a ladle up under the spout and stick a candle directly into the hole.Keep ladle under spout to catch wax and lead drips.About three seconds after sticking candle in spout it will spit out what ever trash is hung up in it,and it pour a solid stream againand shut off when you let the handle go.Repeat as needed,if spout is really nasty it may take a couple of tries.