Can't Tell Results With Test Kit

[ColR1948]

Bit dodgy covering one eye up and holding a card while you are cycling lol.

 

[DreamertK]

One hand was covering the eye and the other was holding the tube/card. I wasn't throwing a dart at some mystical cycling dart board with my third hand, though I wish that was how it happend.

 

[Whitey_144]

does anyone have this on the NPI nitrate? I find the red hard hard to judge from 40-100ppm

 

[fluttermoth]

Nitrate tests are prone to that, but it's less important with nitrate. Look at it as; yellow/pale orange = good, deep orange = ok, red = bad.

 

[daizeUK]

That's going to be tricky for me as my tapwater reads deep orange/red to begin with. Is there a more accurate nitrate test kit on the market?

 

[the_lock_man]

Salifert, I believe.