I have also tried that, drawbacks i encountered were the fumes were toxic and i didn't want that in my garage. you have to mix the soda constantly. For me this was easiest and i had nothing to do but let them soak.
Mixing wasn't an issue for me. And the liquid never goes bad or weak...just cover and bring out for another day.
No fumes as well. I just stuck the bucket just outside the garage door...even in the rain. No smell. Especially not bad stuff like brake cleaner.
I had the bucket and battery charger. the jugs of caustic soda were cheap and the rebar 15 bucks, maybe.
I grow a lot with organics and use molasses. It goes bad very quickly and I am not sure how safe it is breathing that stuff or even handling it months later..does it go toxic ?
lastly, it takes far too long. We cleaned up a bunch of nasty parts very quickly...
