That's a great option, for sure...!
I don't particularly like the fact that you have to clean the pump with acetone after each use, it would be costly in acetone. While these are specially made for handling resins and the acetone cleaning recommendation proves it, I hope that the taps I purchase and suggested initially, don't get eaten by the resin.
I wouldn't trust the acetone on them but, I'm happy if I can either lay the drum on its side, roll it to the tap down position, fill my small containers, turn the tap off and roll the drum with the tap up or, keep the drum in the up-right position until ready to fill other small containers, and them lift the drum back to the up-right position again, this way even if the tap doesn't seal properly or if gets melted by the resin, it wouldn't create a big mess, and wasting a lot of dollars...!
I will expect, in time these plastic taps to need replacement as the resin hardens within, making it very difficult to turn/use. I will see if it can be dismantled, for cleaning when reaches that stage, instead of using acetone to clean it if the acetone affects the plastic, I would spray the old resin left in the tap with the harder and wait a little. I reckon, the harder covering the resin in generous amounts will harden the resin quick but more importantly, it will crack it, making its removal a easy thing, pealing like a plastic skin...!
Well, that's the idea/plan/thoughts...! I will find out in a very near future of how right or how wrong I am...!
Cheers
George