I was also looking at this submersible turbine pump (http://goulds.com/turbine-pumps/5-11-pre-engineered-submersible-turbine-pumps/#product-tab-overview), but had ruled it out previously because the intake is above the motor, increasing the "unpumpable" portion of water and increasing the wet...
Thanks for the responses! The pumps I'm looking at have column lengths of 5 or 10 ft (http://documentlibrary.xylemappliedwater.com/wp-content/blogs.dir/22/files/2016/08/BRDIDISCH.pdf). This gives me to wet well options- one about 11 ft deep with a minimum diameter of 6 ft or alternatively one...
I'm confused on when a Turbine pump can be used. Its the only pump I've found that can handle the amount of head (500 ft) and flow I'm looking for. But I would be placing it in a more typical wet well for the effluent of a wwtp, not a water supply well. Is this ok? The wet well would end up...