Recent content by cdoc83

In case it's of any use for anyone else, here's the formula used by the calculator: ([Chlorine PPM Target] - [Current Chlorine PPM]) × [Number of Gallons] ÷ {(75.71 × [% of Bleach]) + (.746 × [% of Bleach] × [% of Bleach])} This formula was also verified by my science friend as "close enough"...

Yeah, that totally makes sense. I'll probably leave it to that for now. Another part of figuring out a formula is to use it in other areas as well, such as creating the CDC recommended 200ppm solution for disinfecting after a flood or creating a 100ppm shock treatment for a cistern well, or...

Alright, contacted a more science inclined friend, PPM, or parts per million, is actually a MASS ratio, not a VOLUME ratio... Water is commonly regarded as 1 gram per milliliter. Trying to see if we can find the mass of the chlorine part of the sodium hypochlorite.... I'm starting to think...

I agree with that assessment. I think I may have also found the potential "smoking gun" of the calculator being incorrect at values I'm trying to simulate. With the other values remaining constant, if I input 10% bleach solution into the calculator, it indicates 256 ounces is required. If I...

Sweet, thanks! Ok, using the calculator actually found on this site, it seems the math is worse... 50,000 gallons = 6,400,000 ounces, plus the 60 ounces of chlorine = 6,400,060 ounces. 60 ounces chlorine divided by 6,400,060 total ounces = .00000937, or 9.4 PPM. Now I'm more confused...

That is curious, here's a screen shot for proof of what I'm seeing: - - - Updated - - - Well, it seems like someone has ripped off the calculator found on this site at poolcalculator.com, which is where the 25 ounces were coming from. Re-doing the math with the 60 ounces now...

Hey everyone! I know this site has a great calculator to determine how much chlorine to add to achieve a desired PPM, but I'd like to be able to calculate the same result by hand. According to Wiki (https://en.wikipedia.org/wiki/Parts-per_notation), .0001% = 1 PPM. Therefore, if I have 1,000...