Wayne® PC4 Portable Cast-Iron Portable Utility Transfer Pump, 1/2 HPTypical applications for these portable pumps include removing standing water off basement floors or construction sites, draining aquariums, emptying window wells, hot tubs, wading pools and crawl spaces, or boosting water pressure for cleaning jobs around the house. 1 2 HP 115 volt transfer water pump can pump water out of flooded basements, tanks, or boats. It can also increase line pressure by up to 40 pounds or be used to water lawns and gardens,