How to Read Properly Water Tests Results

Hello,

I bought a few months ago the basic water tests - ph, kh, phosphate, nitrate, and iron. But I am rarely using them, maybe due to laziness or perhaps becuase I am really finding it difficult to tell apart the color ranges of the results. Like for example, I use Elos KH test. It says there, once the solution become yellow, then that is the hardness. But how yellow is yellow? Is it light yellow or should be really yellow, like canary yellow? I know that results should be read in subdued light, ok, I got it but it is the comparison against the charts that I am really struggling with. Can you give me any tips here?

Thank you.

 

oh, is that so?
when i bought those tests, i read first a lot of reviews to select the best. i chose salifert for most of them as they have good reviews. but still, its hard to read the colors.

 

by the way, how do you make a verified solution? are they commercially offered by some companies?

 

ohhhhh....me too! i am so lazy to do those tests. (i am not saying you are lazy, its just me... )
how i wish there is available digital meter for every water parameter!

but very clever indeed about the verified solutions. since i have seachem N and P and iron, can i use those to make a reference tests?

 

thank you Tom. i actually found it earlier as I was browsing the old threads. i hope i can follow the steps correctly.