Unclogging a Lee bottom pour

[JDBraddy]

My lee bottom pour flow has slowed to a slow drip, I suspect it is clogged with debris. The lead was hot, adjusted the screw, tried poking a wire through the hole. ALL TO NO AVAIL.

There is 15-18lbs of lead in the pot, don't want to try pouring the molten lead out the top, resorted to using a dipper to cast, but would be a real chore to bail it out with essentially a spoon.

What's the best way to unclog the valve with the pot full?

 

[leadhoarder]

A finishing nail held by long nose vice grips works for me. Some drips out while cleaning it out.

 

[deerstalkert]

welding torch wire cleaners work on one of mine.
the other i opened up one time and a 4d nail held in forceps works well in that one.
usually it is Sulphur and heavier metals that plug the orifice. when you get it flowing, drain it completely and really clean the pot.

 

[French Colonial]

Buy a ladle and leave it plugged.

 

[dave951]

Empty it. Use a drill bit to clear the hole. Do NOT use the bit in a drill. Just twisting it with your fingers will clean it just fine. Unfortunately, it's a thing you'll have to do from time to time.

 

[Maven]

Or, you can plug it permanently and convert to ladle pouring. Lots of disagreement about casting with a ladle, but it has worked for me for > 50 yrs.

 

[nhmoose]

Propane torch the nozzle may help. I use a small drill bit held by vice grips also

 

[smoothshooter]

Empty it. Use a drill bit to clear the hole. Do NOT use the bit in a drill. Just twisting it with your fingers will clean it just fine. Unfortunately, it's a thing you'll have to do from time to time.

Agree 100%.
Also, using a drill bit a little larger than the original hole to ream it out to a larger size works wonders. I would drain the pot well so that the internal valve/stopper is free to move up when the tip of the bit bumps against it when you are drilling up from the bottom. One of those bits that comes attached to a ratchet socket works best.
I typically use a large paper clip with one leg bent out at a right angle to keep the spout clear when casting.

 

[#BPBReloadingFFL]

I drilled mine larger to flood the mould. And keep a fork with one tine bent at a 90' to clear any debris.

 

[tjiann]

Thanks for posting this. I just bought a used RCBS Pro Cast bottom pour pot and am having the same issue.

 

[maillemaker]

I drilled mine out. Had to partially disassemble the pot, removing the base and the valve stem.