In water supply systems, water is normally maintained at a significant pressure to enable water to flow from the tap, shower etc. When pressure fails or is reduced as may happen if a water main bursts, pipes freeze or there is unexpectedly high demand on the water system, the pressure in the pipe may be reduced and may allow contaminated water from the ground, from storage of from other sources to be drawn into the system. To prevent this from happening a backflow prevention assembly is used to protect water supplies from contamination or pollution.
When we build or add new surfaces to an existing landscape, it's important to consider the natural flow of water in that area may be disrupted. Adding impervious surfaces like walkways, courtyards and driveways increases the amount of stormwater runoff, which collects particles of oil, dust, and other pollutants as it travels over the surface of the ground. This section shows some of the products and techniques we use to control storm water runoff.
A French drain, drain tile, perimeter drain or land drain is a trench covered with gravel or rock that redirects surface and groundwater away from an area. A French drain can have hollow pipes along the bottom (see images) to quickly vent water that seeps down through the upper gravel or rock. French drains are common drainage systems, primarily used to prevent ground and surface water from penetrating or damaging building foundations.