The water is now over 3' deep against the side of the baffled AquaDam®; however, the AquaDam® is only 3' tall. The unit will not allow water to spill over the top, because the tube on the upstream side is being squeezed by the water pressure in the reservoir and the downstream inside tube of the AquaDam®.

The upstream tube begins to lift off the ground as the water pressure on one side increases above 3' in water depth. The water is now well over 3' deep at the lowest point of the stream bed.

The upstream tube continues to lift as the water pressure behind it increases. Notice how the water inside the elevated end of the AquaDam® rises much higher than the rest of the unit.

The water pressure against the side of the baffled AquaDam® continues to build as the water in the reservoir gets deeper. Craig is showing how the upstream side of the AquaDam® is about to flip up and over the downstream side. Notice how dry the downstream area is.