Hot Tub Forum
Original => Hot Tub Forum => Topic started by: 96SC on October 20, 2007, 10:47:04 am
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Using the Taylor booklet, table A, to introduce 1 ppm chlorine. If I have a 400 gallon spa and want to add 1ppm with 56% chlorine, how much would I use? The booklet gives results for 45% and 60 % chlorine. To the best of my 'sypherin' I come up with .1 oz. Does that sound right? (Math majors, here are the amounts given: 45%= .12 oz and 60%=.09).
The container label is no help either.
Thanks. :-/
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Don't over-think it lol. I add bout 1.5-2 ounces of di-chlor,AFTER I'm done using spa. That typically lasts in regards to sanitation....3-4 days.
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Since you are using 2 items you must add them together and divide by 2 to get the average.
(45+60)/2 = 105/2 = 52.5 SO (.12 + .09)/2 = .105 ... so the answer is NO it is not 1 oz! 1 oz is going to give you 1 PPM if the chlorine was 52.5 % Try again!!! ;D ;D Now to add to your misery, each teaspoon is 0.16 oz so you need to know how much chlorine does a teaspoon give you. 8-)
**Just kidding** ... I did the calculations a while ago and you need 0.096 oz of 56% dichlor to give you 1 PPM chlorine.
To make it even easier for you, I have a 400 gallon tub and I use 2 heaping teaspoons to get about 3 PPM +/- something. The only difference I use chlorine from Doc that has 62% active ingredients and the amount needed to get 1 PPM is 0.087 oz.
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Since you are using 2 items you must add them together and divide by 2 to get the average.
(45+60)/2 = 105/2 = 52.5 SO (.12 + .09)/2 = .105 ... so the answer is NO it is not 1 oz! 1 oz is going to give you 1 PPM if the chlorine was 52.5 % Try again!!! ;D ;D Now to add to your misery, each teaspoon is 0.16 oz so you need to know how much chlorine does a teaspoon give you. 8-)
**Just kidding** ... I did the calculations a while ago and you need 0.096 oz of 56% dichlor to give you 1 PPM chlorine.
To make it even easier for you, I have a 400 gallon tub and I use 2 heaping teaspoons to get about 3 PPM +/- something. The only difference I use chlorine from Doc that has 62% active ingredients and the amount needed to get 1 PPM is 0.087 oz.
.1 oz. vs. .096 oz. Close enough for government work. [smiley=thumbsup.gif]
Thanks for the input guys.
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Using the Taylor booklet, table A, to introduce 1 ppm chlorine. If I have a 400 gallon spa and want to add 1ppm with 56% chlorine, how much would I use? The booklet gives results for 45% and 60 % chlorine. To the best of my 'sypherin' I come up with .1 oz. Does that sound right? (Math majors, here are the amounts given: 45%= .12 oz and 60%=.09).
The container label is no help either.
Thanks. :-/
gallons of water in tub x desired ppm x .000128 / % of available chlorine in dichlor = amount of dichlor to add in ounces.
Example - 400 x 1 x .000128 / 56%(.56) = .091 ounces
3 tsp per TBS
2 TBS per Ounce