Wet Wells
After the grit chamber the flow proceeds to one of two wet wells. On the
bottom of the wet wells are air diffusers to keep the solids from settling.
Each wet well is connected to two variable speed frequency centrifugal pumps.. This allows for energy
conservation because the pumps only run when necessary, i.e. one pump in each
tank will run and the second pump will turn on if the inlet flow reaches a
certain level (you can see the level controls in the picture, the black
floats in the bottom left corner). The pumps were designed so that only two
would be required to
handle the max. flow rate of 2.62 MGD. This means that if one well needs
repair all the flow can be diverted to the other wet well and the plant will
not suffer any serious set backs. The wet wells are cleaned and maintained
yearly or when necessary. While working in the wet wells, the operators are
required to have air equipment, methane meters, and hydrogen sulfide meters
to ensure safety. The wet wells are enclosed in the same room as the screens
and the grit chamber. To see an overhead view of both wet wells click here
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