Submersible
Everbilt Shallow Well Jet Pump 1/2HP (J100A3) - New
The TEAC Corporation Tascam X-48 feels responsive with no noticeable lag in controls.
AP1200 Commercial Large Flow Water Pump for HZB-30F, HZB-38F, HZB-32, HZB-45,...
Going with this unbranded option means you get more bang for your buck.