after finally getting the calibrations i'm stumped with another problem..
Whoever has a RK2 can you please explain why my ph probe in my tank water in a cup creeps down by .01 increments from 10... right now its at 5.50 and going down further....
Whoever has a RK2 can you please explain why my ph probe in my tank water in a cup creeps down by .01 increments from 10... right now its at 5.50 and going down further....



