Another quick update for you! Part 3 of this project (The bipolar membrane flow cell) was completely reworked to make it easier to put together, as well as potentially producing a better pH gradient. Take a look at the updated instructions if you haven't already. We're seeing a pH difference of up to .5 in our latest proof-of-concept devices too. We'll be taking measurements periodically in order to test if this gradient breaks down over time. Keep an eye out for those tables to be posted in the coming weeks.