Clack control valve Softening resin Brine Tank with salt grid and the float assembly Vortech resin tank. Vortech Resin Tanks are the world's newest, innovative and most efficient bottom distribution system available for resin tanks. Resin cleaning is greatly improved and it works with all softening and filtration medias. Up to 30% less backwash flow rate is required High flow design maximizes today's high efficiency valve technology Improved system pressure drop Self-cleaning nozzle design eliminates potential clogging and build-up. No channeling of media which provides a cleaner more efficient system.