Drop Checker
- Thread starter Derf
- Start date
I would think it lasts a couple weeks or so. I also made one last week and my fluid only went to aqua even though I run 2 bottles of DIY on a 20 gallon tank.
did you test it to know for sure its 4dkh?
Usually it will last for a long time. But once the solution goes yellow and stays that way for a while, from what ive seen/read, it becomes inaccurate.
take your kh solution... use a large graduated cylinder (50ml instead of 10 for example)... multiply how much water you're supposed to use on your test and your drops accordingly...
for example...
let's say the test uses 10ml and each drop = 1dkh... when the color changes accordingly, that's what you have
if you use 40ml of water to start with, then each drop = .25dkh... so, 4 drops = 1dkh... you're looking for exactly 16 drops at this point. this will tell you 4X's as accurately what your dkh is. the higher the multiple of 10ml, the more accurate your test.
EDIT: also...
for example...
let's say the test uses 10ml and each drop = 1dkh... when the color changes accordingly, that's what you have
if you use 40ml of water to start with, then each drop = .25dkh... so, 4 drops = 1dkh... you're looking for exactly 16 drops at this point. this will tell you 4X's as accurately what your dkh is. the higher the multiple of 10ml, the more accurate your test.
EDIT: also...
