Originally Posted by Furball Zen
Dont listen to that, its bosh. My res sits at the bottom of the loop and the tubes stay full when its off (which isnt much) and the highest block is around 8" higher than the highest barb on the res, and its not 'full to the top' either. Hydraulic pressure will keep the water in the loop.
it depends on the res something like a micro res will keep air from getting back into the loop, because of the baffles and how both inlet and outlet have access to the same body of water, the res like the one shown here doesn't meaning he'll need to do what countless other modder have done to keep air out of the look, if you don't believe me, search for "waterfall res" here, and you'll find that i'm right on this one, it's not nice to make daft posts about things you clearly know nothing about