The S3T 3-inch hydraulic-drive submersible trash pump from Hydra-Tech Pumps is designed for jobs such as construction sites and manhole pumping. It is able to fit into 12-inch openings and is used where lightweight, high-volume trash pumps are needed. If being used for a job with limited solids, a small-hole water strainer is available. When combined with HT11 to HT15 power units, it is capable of flows up to 380 gpm. The safe and variable-speed hydraulic drive can be used where electric power is hazardous or impractical. 570/645-3779; www.hydra-tech.com.