There are instances when foreign objects unnecessarily enter into the potable supply of water. This occurrence is called backflow which may be caused by a greater amount of pressure in one point of use or a negative pressure in the water line. Backflow prevention is necessary in keeping the water supply free from any form of contaminants. Any Queens home or building structure should have the appropriate backflow prevention systems to avoid any damages caused by contaminated water supply. These systems can be easily installed by your Queens plumbing contractor.
There are many devices utilized in backflow prevention systems. All of these devices perform a similar function yet the type of devices to be used will be based on the water situation to be prevented.
The atmospheric vacuum-breaker is a device shaped like an elbow and bent at right angles. A valve placed inside the device is what prevents the backflow. This system is dependent on the pressure. This device needs to be mounted at a minimum of 6 inches from where the downstream is located.
A chemigation valve is a device utilized in agricultural areas. In these agricultural settings, the device functions to keep the water from being contaminated with fertilizers, pesticides and other toxic chemicals. Other components exist in the valve. A flapper operated using a spring is present in a check valve that keeps water flowing in a single direction. The device may also contain vacuum release and pressure drain. An injection port is the final component of the device which drives the chemicals to go downwards.
A hydrostatic loop is composed of a number of pipes assembling a vertical structure. The loop should be placed above 33 feet so that the system will function properly and prevents backflow and siphonage into the water line.
A double-check valve is usually seen in systems like fire or lawn sprinklers. On each end is an assembled gate or valve gate. The device permits testing and isolation. This valve also allows reverse and normal flow.
RPZD is a device utilized in zones with reduced pressure. This device is quite effective in keeping the water supply from being contaminated and it is intended to deal with hazards present in high leveled places. These hazards are known to produce serious harm on individuals. There are places where this device needs to be tested by a certified technician at least once every year. There is a chamber in between the separate check valves of the device where pressure monitoring is done. The excessive amount of pressure will be taken off through another drain. The chamber where pressure is monitored is retained at a pressure lower than that of water supply.
Air gap is a device that is commonly found in majority of Queens homes. In the home’s faucet there exists an air gap in between the sink and the head of the faucet. In winter, homeowners are advised to turn on the faucet at night. The flowing water helps prevent it from getting frozen. Frozen and expanded water is likely to cause the pipes to burst. Pressure is also relieved as water is allowed to flow to a certain area as pressure starts to build brought about by the partial freezing of the water.
