underdrain Definition

soakaway, drainage, outfall, pipework, diverter, penstock, downpipe, aeration, clarifiers, subgrade, upflow, crossflow, clarifier, prestressed, subbase, separator, trommel, sumps, influent, rotor shaft, capillary tube, underflow, manway, economizer, flowmeter, platens, piping, headrace, corrugation, polyphase, macerator, centrifugal pump, cathodic protection, antares, vacuum distillation, bedplate, coiler, superheater, weldment, sleeving, manometer, activated sludge, inlet manifold, filtrations, retarder, swage, piston rod, valving, voltage divider, crius, microchannel, trunnion, washdown, displacer, degas, hoistway, conveyor, venturi, shimming, flocculation, eductor, grouting, pintle, relines, reclaimer, triaxial, precipitator, turbogenerator, installation, underfloor, heat exchanger, inferior vena cava, revetment, baseplate, forebay, gunite, molecular sieve, digestor, polybutylene, inlet, eluent, lamella, viscometer, chromic acid, augmenter, ingression, floor joist, handwheel, midplane, condensers, toroid, comminution, busbar, transite, dehumidifying, sheave, strain gage, chamfer, microbalance, interfacial tension,