Water and sewer lines must be protected from breakage by proper bedding, which helps prevent penetration by sharp rocks and provides insulation for avoiding exposure to extreme temperatures. Also line size must be matched according to need. The location of water and sewer lines should be documented to allow for repair and to avoid damage by digging. Water lines should not be located near gas or sewer lines where possible contamination could occur. Manganese is a mineral often found in surface waters that causes black stains on basins, filter sand, bathroom fixtures, laundry, etc.
Manholes are access points to pumping stations, valve vaults, and drainage systems.
Meters record information on flow rates throughout the plant. Metering allows the operator to monitor changes and conditions from a single location. Individuals who are not necessary to the task involved and hinder the operational process. Pb More. . . Poor water quality is a broad term, which can refer to any number of parameters including taste, odor, color, mineral content, and toxicity.