This video shows how rubber is removed from concrete using 10,000 p.s.i.(per square inch) high pressure water technology. ESI 's high pressure pump puts out 44 g.p.m. (gallons per minute)allowing for 2 Spinjets to run with only 1 pump. The spinjets have multiple spinning arms that direct multiple tips to remove the rubber. The coating needs to be removed for resurfacing of the bridge.