Operating Instructions 100QJ series of multiple-degree(deepwell)submersible pump is a newly developed product of the company.it adopts imported high quality stainless steel as its pump body material.it has features of beautiful appearance,solid structure,super high lift and high efficient energy saving,etc,with a service life of over ten times longer than that of other common worm pumps.Furthermore,it has a free lift range,suitable for all lift ranges.due to its small lateral size it can be used in all wells of over 4 inches(included)in diameter.it now becomes indispensable in deep-well water pumping and high-building water supplying