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post #1 of 7 (permalink) Old 11-25-2014, 05:19 AM Thread Starter
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Diy dkh 4 question

Hi
I need dkh 4 for my drop checker
My question:in this link https://www.plantedtank.net/forums/sh...ad.php?t=42429 he wrote mix 3.6 gr baking soda with 3 litre di water will give 40 dkh and in this link http://fins.actwin.com/aquatic-plant.../msg00109.html wrote 5 litre di water with 4.992 baking soda will give 40 dkh.
Equation isnt right.one of them should be wrong.which one is true?
Tnx

Last edited by Kavak; 11-25-2014 at 05:20 AM. Reason: A
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post #2 of 7 (permalink) Old 11-25-2014, 07:07 AM
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I had calculated it out awhile ago (several years ago) and I believe billionzz's method is correct.

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post #3 of 7 (permalink) Old 11-25-2014, 03:37 PM Thread Starter
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I think one of them should be wrong.any idea?
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post #4 of 7 (permalink) Old 11-25-2014, 04:47 PM
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The 5L : 4.992 baking soda is wrong.
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post #5 of 7 (permalink) Old 11-25-2014, 04:57 PM Thread Starter
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Quote:
Originally Posted by mistergreen View Post
The 5L : 4.992 baking soda is wrong.
But he got link for kh calculator.r u sure this one is wrong?
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post #6 of 7 (permalink) Old 11-25-2014, 05:03 PM
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He must have made a mistake somewhere converting gallons to liters. UK and US gallons are different values.

5L should yield 6g of baking not 4.992(5)g
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post #7 of 7 (permalink) Old 11-25-2014, 07:45 PM Thread Starter
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Quote:
Originally Posted by mistergreen View Post
He must have made a mistake somewhere converting gallons to liters. UK and US gallons are different values.

5L should yield 6g of baking not 4.992(5)g
Many tnx
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