You can use a batch of the dip repeatedly but keep in mind that it will lose potency over time. I use mine in an old pickle jar and when I’m done I immerse a bunch of paper towels to soak up the liquid (just in case something happens to the jar) seal it up, and dispose of it at a certified hazardous waste center. If you have a safe place to leave the jar with the lid off you can also let evaporation do it’s thing which leaves only particulates behind and then dispose of it properly. The key is please dispose of it properly at certified hazmat location.