Soil

Double Check Valve Assembly (DC): A DC is a mechanical backflow preventer that consists of two independently acting, spring-loaded check valves.

Absorb

Sewage

Backflow prevention devices operate by allowing water to flow in only one direction. In an unprotected water service connection, potable water can flow both in and out of a building or fixture. When water service is interrupted in the street or in a building for any reason, there is a pressure drop which can draw contaminated water backwards into the water system. For example, cleaning fluids may be drawn back from car washes; stagnant water from fire sprinkler systems may enter the drinking waterline; bacteria and pathogens of all sorts can be siphoned back into the water system from air conditioning cooling towers; and chemicals from medical clinic's X-ray development may flow backwards into the potable water system. To protect water quality, backflow protection is required where the end user poses a risk of polluting the city's water supply.

Drainage systems are important for the health and safety of properties everywhere, but the Portland area is one of the rainiest metropolitan areas in the country, making proper drainage a necessity. That’s why the team here at Simple Lawns & Landscape Design has put together this list of the best types of drainage systems for your home. Join us as we go over the benefits of some of the most popular drains, and be sure to check out our irrigation and landscape design services to improve the drainage of your home in the Portland area!

drainage意思

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A catch basin drainage system, also known simply as a “yard drain,” is a key component of many modern stormwater management systems. These basins are designed to collect and manage rainwater runoff efficiently. The construction of a catch basin involves a large, typically underground structure with a grate or curb inlet on the surface to capture surface water and direct it into the basin below. The collected water is then typically channeled into a drainage pipe system, allowing it to be redirected away from the area to prevent flooding and soil erosion.

Pressure Vacuum Breaker Assembly (PVB): A PVB is a mechanical backflow preventer that consists of an independently acting, spring-loaded check valve and an independently acting, spring-loaded, air inlet valve on the discharge side of the check valve.

Groundwater

Drain

A French drain is a highly effective and versatile drainage system that offers a robust solution to managing excess water in your yard. The construction of a French drain involves a relatively simple yet effective process. It typically consists of a trench that is dug into the ground and filled with gravel or rock, which acts as a conduit for water. This installation method also enhances the natural aesthetics of your yard due to the lack of visible grates. A perforated pipe, often covered with a fabric sock to prevent clogs, is then placed at the bottom of the trench. This pipe serves to collect water from the surrounding soil and transport it away from the problem area, ensuring that your yard remains free from standing water.

Swales are shallow, gently sloping channels or depressions designed to manage water flow on your property effectively. These landscape features are constructed by excavating a trench or depression, often following the natural contour of the land, and lining it with vegetation, rocks, or other suitable materials. When swales are hidden and blended with natural elements, they are often referred to as bioswales. Bioswales are an environmentally friendly and aesthetically pleasing way to control surface runoff and prevent erosion in your yard. Be sure to check out our bioswale installation service for more information!

A traditional trench drainage system, also known as a linear drain or channel drain, is a widely used and highly effective method for managing surface water and preventing water-related issues. These systems consist of a long, narrow trench or channel, typically constructed from materials like concrete or polymer concrete. The trench is equipped with a removable grate or cover that sits at or slightly below ground level to collect and redirect surface water efficiently. Traditional trench drainage systems are commonly installed in various settings, such as industrial facilities, commercial spaces, residential driveways, and patios. Trench drains are a popular type of surface drain.

Air Gap: An air gap is a vertical, physical separation between the end of a water supply outlet and the flood-level rim of a receiving vessel.

Reduced Pressure Backflow Prevention Assembly (RP): An RP is a mechanical backflow preventer that consists of two independently acting, spring-loaded check valves with a hydraulically operating, mechanically independent, spring-loaded pressure differential relief valve between the check valves and below the first check valve.

Protecting your property from all the natural hazards that exist in the world requires a multifaceted approach. One of the most crucial safeguards you can provide your home and yard is a proper drainage system. Drainage systems prevent damage to your home’s foundation by redirecting excess rainwater, and they help prevent standing water and puddles in your yard, which means fewer issues like pests, disease, and weeds.

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A surface drainage system is a practical and effective method for managing excess water on your property's surface. This system is constructed by creating shallow channels or basins, usually covered with grates or perforated lids, to collect and direct water away from problem areas. Surface drains are particularly useful for addressing issues like standing water, surface runoff, or water pooling, which can lead to erosion and damage in your yard. Surface drains are the most common and widely used types of drains for residential areas, and there are many different types of systems that could be considered surface drains.

A dry well drainage system is a subsurface structure designed to manage excess water by allowing it to percolate into the ground. This system is constructed by digging a hole or excavating a cylindrical or box-like chamber in the ground and filling it with gravel, stone, or other porous materials. The primary purpose of a dry well is to collect and disperse water from sources such as roof runoff, surface drainage, or sump pump discharge, preventing waterlogging and potential flooding in your yard.