Dose help

I have 3000ppm concentrate. How much in 64oz h20 to make 25ppm? 

So, if you were to take 10 parts water to 1 part CDS you would be down to 300 ppm. Do that again and you would be at 30 ppm. So, 100 ml of water to 1 ml of cds would be roughly 30 to one which in my opinion is close enough. You don't have to be that accurate for CL02 to do it's job. I take WAY more than that all the time