I've run into a problem with easily re-conditioning my foundry sand...
I've been using a mini-carver design for fresh batches, but it's nearly
useless for reconditioning.
I'm toying with using a bowling ball in a regular cement mixer with the
vanes removed.
Anybody here have some actual experience????
Replacing the exact right amount of water after a pour seems more of an art
than a science...
So far I'm an expert on too much or too little... just right remains
elusive...
Chet