Make Any Sense Of This?

[Ginge]

mg/l CaCO3 ppm CaCO3-283


Clarkes d English-19.8


German dH-15.8


French dF-28.3


mg/l Calcium-113.3


What does all this mean i got it of my water board website

 

[Themuleous]

Looks like its to do with the hardness of the tap water. CaCO3 is calcium carbonate I think. Think it means you've got 283ppm CaCO3. The rest is just another way of showing the hardness. People tend to measure hardness (or GH) in degrees GH and there are several degree scales, think the most common aquarium one is the German degrees one. To work it out you devide the ppm by 17.9 ie 283/17.9 = 15.8, guess the same is true for the others ones?

Not 100%, someone will prob correct me if I'm wrong

Sam

 

[zig]

Sam is correct........its generally the German dH degrees that we use which can also be converted/or vice versa into ppm measurements eg. my KH value is 1.7 dH which also equals 30ppm KH.

 

[Ginge]

So i have a GH of 15 i wanted to use EI. I think i will test the water again with my own test kit when i get it i dont really trust water boards as nobody on here seems to get test kit results the same as their water boards.
What stops me using EI with a very high GH???


Edited:Just realised im an idiot and the article never said a GH of over 10 is bad???