question with my KH numbers

esworp

Scuba-Dork

Mar 20, 2005

72

0

0

• Mar 22, 2005

• #1

My testing kit displays KH in terms of ppm, but all of the charts used to determine co2 content are in some other scale for KH.

how do i take a 300ppm KH reading and apply it to the CO2 charts linked to in the CO2 sticky topic?

 

TrickyD119

Newb

Jan 25, 2005

234

0

0

Auburn, AL

• Mar 22, 2005

• #2

Divide 300ppm by 17.86 or something awful close to that.

 

S

steveywinet

PardonMyFrench

Jan 25, 2005

121

0

0

Muskego, WI

• Mar 22, 2005

• #3

I had the same problem. My test kit gave me ppm, but all the formulas used dK (German degrees of KH). I searched Google and got many hits stating to divide the ppm number by either 17.8 or 17.9 depending on the source. HTH.

 

Harlock

Educated Idiot

Dec 15, 2004

2,405

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52

San Angelo, TX

members.cox.net

• Mar 22, 2005

• #4

I'll confirm, it's 17.86

 

Mrditty

Abused husband, dad

Feb 5, 2003

76

0

0

63

Cockeysville, Md

www.baltimorecanoeclub.org

• Mar 22, 2005

• #5

Or if you don't like division you can multiply it by .056

 

esworp

Scuba-Dork

Mar 20, 2005

72

0

0

• Mar 23, 2005

• #6

thanks gang, great to have the help.