"HELP!!" How much duramycin to a gallon?

[Erica Frizzles]

The back gives directions in milligrams but how do I measure that? 200-400 mgs is about how much?

 

[Erica Frizzles]

How much do I add to 1 gallon of water?

 

[hretter]

There are 10 grams per 181.4 gram (6.4 oz.) package, so to get .8 grams (800 mg), you would need (.8x181)/10 = 14.5 grams, or about 1/2 oz by weight per gallon.
To double check this calculation, 1 pkg makes 12.5 gallons of 800 mg / gal concentrate, so 14.5g * 12.5 gal = 181.25 grams, which is the total weight of the package.
Clear as mud? I use a digital kitchen scale to measure it out.

 

[Arielle]

I've been using 1 tablespoon per gallon for 800mg/gal. One teaspoon per gallon give you a third of the potency. I had to ask too. LOL