DARLING Pump Today Has One Of The Widest Range Of Submersible Dewatering Pumps. Darling Dewatering Range Of Pumps Consists Of Lj Series, J Series, T Series, Tuff Series, Tl Series & Jl Series Pumps. – They Are Ideal For Basement Dewatering, Pumping Heavily Contaminated Water With Sand, Gravel & Sludge In Construction Sites & Mines, Industrial Processes, Pits, Quarries, Narrow Coffers, Dams Well Point Dewatering, Mass Water Transfer/Dewatering & Many More Such Applications.