Isabella, is there any way you could get ahold of an insulin syringe? If so break off the needle and use the markings for 100 units to equal what you should put in 10 gallons or 10 units is for 1 gallon. I will need to be a 1 cc syringe so you are using 1/10th of 1 cc per gallon. This is the easiest way or there are 16 drops per ml. or 80 drops in 5 ml. so the dose per gallon is 2 drops from an eyedropper. (a bit more imprecise than the syringe method but as close as you can get with a dropper) I would treat one gallon with 2 drops and then wait a little while and test the water for
chlorine and you will know if it has done the job. I know this sounds like a very small amount but Prime is VERY potent and for 1 teaspoon to treat 50 gallons the amounts you will be working with will be quite small.
If you know of someone who is a diabetic, the syringes cost them about 45 cents and you could probably get one or two from them. The first thing I would do is use the cap to break the needle off so you do not get scratched with it and then when you use the syringe be sure to rinse it with water by drawing some water up into it and then shooting it out again to dispose of it. This keeps them from clogging.
NEVER accept a used needle, make sure all the security measures are still intact.
Rose
