so on this chart id be in the falling/static/falling category, as the water is used the water level falls, ec stays the same, but ph is dropping, my solutions in the past have been higher than 1.4 ec so that made since, this latest batch i set to 1.3 ec which means its in between the 1.0 and 1.4 range that the solution box suggests... the res gets emptied and refilled every 10 days, i even waste more water than i like to by allowing the hose to run while letting the fresh water flush out the chiller lines while also pumping the res out the drain line. i probably dump 10gals or more doing this "rinse out" but since ive been having these ph issues im desperate to make sure theres nothing left behind in the system that could be causing it. im finding no reason that my ph should be dropping on every batch..