hey whassup man..i used the shooting powder the last 3 weeks..starting of with 1 sachet. the instruction say to use 1 sachet ever 25 gallons. but of course i wasnt mixing 25 gallons. so what you do is mix the whole sachet in 1 gallon container filled with 1/2 warm water. then you add 151 ml to every gallon of feed water. and it made my shit burst..i love it and will use it every time....