Backflow Testing & Certification

Backflow occurs when contaminated water flows backward into the clean water supply -- a serious health hazard that can introduce chemicals, fertilizers, bacteria, and other pollutants into the drinking water system. Backflow preventers are mechanical devices installed on your plumbing to stop this from happening, but they must be tested annually to ensure they're working properly.

Shaw Plumbing provides licensed backflow testing and certification for commercial properties, irrigation systems, and fire suppression systems throughout Melbourne FL and the Space Coast. With over 36 years of plumbing experience in Brevard County, we handle the testing, paperwork, and reporting so you stay compliant with Florida code requirements.

Florida plumbing code requires annual backflow preventer testing for all commercial properties, irrigation systems connected to potable water, and fire suppression systems. The City of Melbourne and Brevard County water utilities enforce these requirements and can issue fines or shut off water service for non-compliance.

Beyond compliance, regular testing protects your property and the public water supply. A failed backflow preventer can allow pesticides from irrigation systems, chemicals from commercial processes, or stagnant water to contaminate the municipal water supply serving your Melbourne FL neighborhood.

During a backflow test, our licensed technician connects a calibrated test kit to the backflow preventer and checks each valve and component for proper operation. The test verifies that the device prevents reverse water flow under various pressure conditions.

If the device passes, we complete the required certification paperwork and submit the test results to your local water utility. If it fails, we diagnose the issue on the spot -- most repairs involve replacing internal seals, springs, or check valves and can be completed the same day so you don't need a second visit.

Reduced Pressure Zone (RPZ) assemblies provide the highest level of protection and are required for high-hazard connections like commercial and industrial applications. These devices have two check valves and a pressure-differential relief valve.

Double Check Valve Assemblies (DCVA) are used for low-to-moderate hazard connections, commonly found on irrigation systems and fire sprinkler lines in Brevard County residential and commercial properties.

Pressure Vacuum Breakers (PVB) are commonly installed on irrigation systems throughout Melbourne FL. They protect against back-siphonage and are a cost-effective option for many residential irrigation setups on the Space Coast.