Thompson

  compressor-assisted, dry-prime trash pumps that range in size from 4 to 12 inches and are designed to handle solids up to 3.35 inches in diameter. An engineering feature in these pumps prevents fluid from entering the venturi and eventually spilling on the ground. Thompson's Enviroprime system is designed to extend pump life by separating air and water and, through the use of hard-iron components and high-efficiency impellers, to reduce operating costs. The pump series provides flow rates to 6,250 gpm and head capabilities to 172 feet.