Hey Hydro, don't know if can work it out, but thinking if you can add more recipes to deal with the drinkable from the floor bug, for example: empty wooden bucket with concret - wooden bucket with concret + pickaxe = Wooden bucket. I believe that you can't make recipes resulting in nothing, so for items like the ingot mold could be: destroy ingot mold - ingot mold + 1 red or grey clay = 1 red or grey clay. The problem is that you can waste full items, but don't see anyone cliking on a recipe named "empty" or "destroy" on a full item.
For the charcoal and propane tank can be added recipes to empty them. Empty chacoal - charcoal + spade or work gloves (or something like that) = empty charcoal bag. The new item "empty charcoal bag" can be required to make the charcoal in the kiln, that way you can't just stock charcoal from corpses or ripped sheets, you have to find at least one and get the empty bag to make a new one (maybe craft the bags as well). In that case, the charcoal when used from the inventory have to become empty charcoal bag too, don't know if can be done.
The propane tank when used in the BBQ don't change. I know you can find an empty propane tank in the junkyard and only one is needed for the biogas tank, so no problem there, but what to do with a item that can't be used and weights 20 units. Empty propane tank - propane tank + some kind of hose = empty propane tank, the empty tank can be required to make propane in the biogas tank and/or recycled. For the welding torch and gas tank would be needed two recipes, dismantle the whole thing and reclycle the welding gas tank and the empty too (have no use at the moment).
For the solar park a turn off repice that changes the powered to the solar park off, if you do this to the full park you'll only waste time, better then have to find another 8 car batterys.
For the biogas tank can't be just a recipe to full it, so you would be able to make propane without make compost, to balance that can be consumed 5 worms and 5 of the foods used to make compost in a recipe to restore the biogas tank.
Those are the items that i found with the bug. It's a minor bug and once you get it, can only cause problems in moments of distraction. So I don't know if worth all the work to fix it. although it would be a nice touch.