Main Use:Water removal or transfer. Draining swimming pools and tanks. Construction site dewatering applications. Product Information:Instant pumping. Easy to handle. Self priming. Easy to transport and use. 18,000 litres/hr capacity. Easy to transport and use. Specifications:Drains down to:: 40mm (1.5"), Capacity: 18,000lph (4,000gph) Note:Use a RCD unit. Lay flat discharge hose.hired separately.