Question about Elos KH test kit.
 

I've been using these test kits for that longest time, and have noticed a change in the newest kit i have purchased. It states in the instructions,

"Each drop of reagent corresponds to one degree of hardness. The total number of drops used equals the total hardness of the solution in 'dKH for example 4 drops = 4 dKh."

Now, the newest kit i've purchased states.

"Each drop of reagent corresponds to one degree of hardness. The total number of drops used equals the total hardness of the solutioni n 'dKH for example 8 drops = 4dKh."

Which is correct? I don't want to over dose to raise my KH.

http://www.canreef.com/vbulletin/showthread.php?t=49977

This should help.

Keith

im very disappointed in my ELOS Mg and KH test kits just all round garbage

why do you say that?

Im happy with mine!, and in my KH kit i bought last month 1 drop = .5 dkh

+1

firsttest with the kh kit the test tube broke spilling everywhere, the contradictory instructions and I can't seem to get consistant test results out of the mg kit I got 1200,1150,1300 ppm all back to back in a span of 10 min I'm just glad I didn't buy the entire elos line like I was going to..

Mine say's 1 drop = 1dKH when you have 2.5ml of water in the vial, or 1 drop = 0.5 dKH when you have 5ML in the vial, did you double check that? Their instructions seem pretty vague at best compared to others, but the test results i get from my Ca, Mg and dKH seem to be pretty accurate from test to test (i was double and triple testing in the beginning to make sure my results were correct). The kits do seem to be very expensive though imo.