What is wrong with this sentence

sharko · Post by **sharko** » Thu Mar 03, 2005 4:16 pm

What is wrong with this sentence:

a carbonate hardness of around 1odH, does it mean GH or CH/GH

Is 1 dh CH and GH put together or am i lost here

Rob · Post by **Rob** » Thu Mar 03, 2005 8:58 pm

As far as I am aware, it represents degrees of Hardness.

Check out the following link, it's explained pretty well here.

http://www.thekrib.com/Plants/CO2/khgh.html

ROb

Mindy · Post by **Mindy** » Sat Mar 05, 2005 2:01 pm

I thought the carbonate hardness was KH (not GH), and was an indication of the buffering capacity of the water... Is this right?

Rob · Post by **Rob** » Sat Mar 05, 2005 3:02 pm

Yes

Carbonate Hardness is KH, and GH is for the likes of Magnesium, heavy metals etc. KH is usually a very changeable parameter, due to the Carbonate part of the chemical reacting with the surrounding chemicals in the water.

ALthoug...saying this, I will go and have a wee read up as my memory is like a seive these days!!!

Rob

Des · Post by **Des** » Sat Mar 05, 2005 7:23 pm

Hi,

Here is a link that explains kh and gh better than I ever could.
It also has a lot of other interesting related topics.

http://www.fishdoc.co.uk/water/hardness.htm

Regards,
Des.

McEve · Post by **McEve** » Sat Mar 05, 2005 9:23 pm

Looks like it's GH, general (total is more correct isn't it? Gesamt?) hardness, they refer to if they give only dH (H) as the parameter.

If it's KH, Carbonate hardness, it will say so.

Would this be right?

Ed_R · Post by **Ed_R** » Sat Mar 05, 2005 9:45 pm

I dunno, my head just exploded.
And it's gonna be a real pain to clean that stuff off the ceiling.

McEve · Post by **McEve** » Sat Mar 05, 2005 9:52 pm

Glad that's not my job!

Ed_R · Post by **Ed_R** » Sat Mar 05, 2005 11:38 pm

GUess I'll go rent one of those steam-pressure hose things.
Yech.