BURCAM 300400 Contractor Sump Buddy， Brass<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Emergency water back-up system that operates without a battery or power to protect your home from flooding in case of power failure or pump failure</li><li>Works from municipal water pressure</li><li>Water under pressure will flow through the sump buddy which creates a vacuum and causes the water in the sump to be drained out into the dischrge line</li><li>In the event of flooding during a power failure the rising water， in the sump ， will activate the automatic control valve which will start the system</li><li>Maximum lift of 15 feet， pumps up to 1400 us gph</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31aKKsIVRpL.jpg" noproxy>