Backflow Preventer Installation in Atlanta

A backflow preventer is an essential component of any commercial property's plumbing. The city of Atlanta requires all commercial water customers to install a backflow prevention device to protect potable water supplies from accidental contamination through plumbing connections. Marquise Commercial Plumbing is here to help you with all your commercial plumbing needs, including septic tank maintenance, hot water heater services, drainage solutions, and leak detection in Atlanta.

Causes of Backflow

Plumbing systems work by transporting water from one location to another in a single direction. A backflow preventer is designed to protect drinking water from contamination through backflow, which occurs when water moves in a direction opposite its intended flow. Backflow can occur in any system where potable and non-potable water lines cross. There are two main causes of backflow:

  1. Backpressure occurs when the pressure inside your plumbing system increases, forcing non-potable water into drinking water lines through plumbing connections. Possible sources of backpressure include pumps, boilers, heat exchangers, or power washing equipment that is connected to your plumbing system.
  2. Backsiphonage is the opposite of backpressure—backsiphonage occurs when there is a drop in pressure inside a plumbing system, which draws non-potable water unintentionally into potable water lines through cross connections. The use of toilets, hoses, and some other plumbing appliances can cause backsiphonage without the installation of a backflow preventer.

Choosing the Right Backflow Preventer

Different types of backflow prevention devices operate via different principles to prevent unwanted backflow in your plumbing system. Your Atlanta plumber can help you determine which type of backflow preventer is best for your needs.

  • Backflow can occur between both direct and indirect plumbing cross connections between potable and non-potable water supplies. The type of connection often determines the best type of backflow prevention device for maximum efficacy.
  • The degree of hazard to potable drinking water supplies can also play a role in your choice of backflow preventer. Low hazard contaminants may include substances that do not make contaminated water harmful, such as odors or undesired tastes. High hazard substances include those that may cause illness or death if ingested, such as bacteria, chemicals, or other hazardous materials.
  • Like any plumbing device, backflow preventers have various ratings and operating guidelines. It's important to choose a backflow preventer that meets your needs in terms of water flow capacity and the number of continuous hours the device will be in operation due to your property's plumbing usage.

If you require installation, testing, or repairs of a backflow prevention device on your commercial property, contact Marquise Commercial Plumbing at (678) 546-7596 for more information or to request an estimate.

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