... Automatic and manually control system for backwash2. Pump over-power protection system3. Water level control system to automatic generate and ... , water flow: 18M3/hr2. Quartz sand filter system with backwash system: (stainless steel304 housing: dia1200mmx 2000mm x 3. ... . Water flow indicator, pressure indicators, buttons, valves system and other gadgets,piping systemPower: 14Kw (single phase standard ...