That second thing might've been happening because tanks transport 3 water per side per second but rain condensers only input 6 per side per second. So if you were taking out from all three sides, it was using more water than was being input. I'll admit, that was kind of a bad way of doing things on my part and I should've had it be 2 water per side for the tanks. Not sure what was happening with the other thing though, sorry!