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Backflow Testing RaleighRaleigh Backflow has to be tested annualy.To schedule your backflow testing call our number! Why do I need my backflow assessed?Backflow assemblies and devices have parts that can break down and wear out, just like the parts on your car. By having the backflow tested annually, you will help to ensure the drinking water supplied to your home remains safe. Because backflow assembly parts can break down and wear out, most lower mainland cities have created by-laws to help ensure the safety of our drinking water
Why does the relief valve drip under flow conditions? The relief valve is fouled with debris. Inspect the seal ring and seat for damage and debris, flush the system and re-assemble. For more information, refer to the installation instruction sheet. Why does the relief valve discharge intermittently? Inlet pressure fluctuations and/or water hammer downstream will cause the relief valve to discharge intermittently. A soft seated spring loaded check valve should protect the valve from water hammer. A pressure reducing valve or a check valve installed on the inlet should help minimize relief valve discharge caused by inlet pressure fluctuations
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Under the guidelines of a Cross-Connection Control Program a Backflow Preventer is required whenever a direct or in-direct cross-connection in a public or private water system exists. The Reduced Pressure Principle valve is designed for high hazard installation where back-pressure and back-siphonage could occur. Why does the relief valve drip under no flow conditions? A fouled #1 check valve is the most common cause for this situation. Inspect the seal ring and seat for damage and debris, flush the system and re-assemble. For more information, refer to the installation instruction sheet.
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