AquaPro DUPLEX water softener system With Clack Control Valve for Continuous operation is design for using constantly 24 hours a day. This water softener system also consists two key units; the resin columns and brine tanks. But here far more resin columns are essential to making certain the continuous supply of soft water, while the rest (brine tank holds the sale) which required for regenerates from the ion exchange resin. For more information about water softener in Dubai visit http://www.aquaprollc.com/product/duplex-industrial-water-softener/