Electric Submersible Drainage Pump – WEDA D70N The WEDA D70N electric drainage pumps from Atlas Copco are fully submersible, portable, and lightweight. Both the D70L and D70H versions are available. The D70L has a max flow of 1200USgpm, a max head of up to 110ft, and a 6″ discharge; the D70H has a max flow of 300USgpm, a max head of 254ft, and a 4″ discharge. The two models run on a 50hz frequency with 400v to 690v motors and can handle solids up to 0.27in. The D70 drainage pumps perform extremely efficiently in both clean and sand-laden water, even with tiny solid particles.