Hi all, I have just recieved a new JBL drop checker and have a problem. I followed the article on this website using exactly the same checker But after putting in 1.5ml of 4Kdh water then 3 drops of the reagent, my colour is a definate dark dark blue, not bluey green indicating 7ph. so I have tried it using tank water and 3 drops and it is still the same. So I actually then followed jbl instructions rather than this website and fileed with 1.5ml tank water then 2 drops of reagent and still the same very dark blue. Could anybody explain.
Regards Kev.
Regards Kev.