How should backflow prevention devices be installed according to UPC?

Backflow prevention devices are critical components in plumbing systems that protect potable water supplies from contamination. According to the Uniform Plumbing Code (UPC), these devices should be installed in accordance with the manufacturer's recommendations. This ensures that they function effectively and maintain compliance with all relevant safety standards.

Manufacturer specifications provide essential details such as the correct pressure, orientation, and location, which are necessary to ensure that the backflow prevention device operates as intended. Following these guidelines can help prevent issues related to improper installation that might compromise the device's effectiveness or lead to potential contamination of the water supply.

Options mentioning installation at the main supply line, every fixture, or only when required by local codes do not provide the specificity and safety assurances that following the manufacturer's recommendations offers. Each plumbing system may have unique requirements based on its design, use case, and potential hazards, making adherence to manufacturer guidelines the most reliable approach to ensure proper installation and performance of backflow prevention devices.