ok.. maybe its cuz it is still new and the water tries to repel from the prizm.. i dunno
but seems like every single time, i get some bubbles. i even tried to cover the whole prizm before lowering the plastic cover.
im just hoping there is a trick to it.. i want to make sure my readings are 99% accurate, like a refractometer is supposed to be...
got rid of my hydrometer cuz of inaccuracies.. now i got this problem, LOL