The water level should be in the middle of the elbow all the way across and is set by the main "drain" with a ball valve, so you will need to move those elbows up some. The emergency one I have facing up and it's about 1 - 1 1/2" above the water line but below the top of the overflow box
Water level about the middle of the "t"
emergency drain
Just need the one valve for the main one (without the air tube)
Sry Steve, but your's does not look like the one pictured (from bean's site)