Color Coded Pipes
PVC (polyvinyl chloride) pipes have been carrying water to communities all over the world since the 1950s. It is used extensively in underground municipal systems to carry clean water to homes and sewage to wastewater treatment facilities. PVC resin pipes have some advantages over metal pipes such as corrosion resistant, flexibility, water tight joints. The PVC pipes are color coded to indicate the appropriate use of the pipe: blue for potable water, green or white for sewage, white for irrigation and purple for reclaimed water.
