| North Carolina Rest Area/Welcome Center I-73/74, US 220 Randolph County, NC North Bound - The two 1,400 gallon CorGal above ground tanks release water to the 6,000 gallon underground concrete tank via a mechanical float valve when the water level drops. Water from the three buildings is piped to the Graf self cleaning filter and flows into the cistern. The Rainwater System Controller releases municipal water to the cistern when the water level drops below 20%. South Bound - 6,000 gallon underground concrete tank with filter and controller. These systems irrigate the lawn and garden areas in the public areas. |
