Originally Posted by DanS180
i can reach the T from the side of my tank with no problems. and yeah i can switch the ball valve and check valve... does it matter which order they go in??
EDIT : 2000 posts for me
It can matter. I agree 100% with mrc. Check valves work better under higher pressure. Having it above the ball would let the pressure of the whole tank force the check valve off even if the ball valve was mostly closed.
Is the low check valve vertical? Hard to tell on my iPod.