Today, South Jersey Backflow completed an annual backflow preventer test and maintenance service in Hoboken, NJ, at a luxury high-rise condominium complex overlooking the Hudson River. The building’s property management team scheduled the test to comply with Hoboken Water Utility’s backflow prevention regulations.

This particular high-rise has multiple water systems, including potable water for residents, fire suppression systems, and irrigation for rooftop gardens. The backflow preventer we serviced today was a Conbraco 40-200 Reduced Pressure Zone Assembly (RPZ) installed on the main domestic water supply.

Initial Inspection and Testing

The 40-200 RPZ was installed in a dedicated mechanical room on the building’s lower level. Our initial inspection found:

• No visible leaks or signs of corrosion.
• Stable shutoff valves with no operational issues.
• Slight debris accumulation around the relief valve discharge port.

We conducted a full backflow preventer test using our differential pressure gauge:

1. Check Valve #1 – Passed, holding at 3.0 PSI.
2. Check Valve #2 – Passed, maintaining 2.9 PSI.
3. Relief Valve – Passed, opening at 2.1 PSI.

Preventive Maintenance

Although the unit passed testing, we performed routine maintenance to extend its lifespan:

• Flushed the relief valve to remove minor debris buildup.
• Inspected and cleaned the check valves to prevent future obstructions.
• Checked the shutoff valve packing for any early signs of wear.

Final Steps and Certification

After completing our service, we:

• Filed the compliance report with the Hoboken Water Utility.
• Provided a copy of the test results to the property management team.
• Scheduled next year’s test to ensure continued compliance.

Final Recommendations

Before leaving, we advised the property management team to:

1. Monitor water pressure fluctuations, as high-rise buildings often experience pressure variations that can impact backflow preventers.
2. Inspect the mechanical room quarterly for any unexpected leaks or condensation issues.
3. Ensure the rooftop irrigation system is properly maintained, as debris buildup can lead to future backflow concerns.

Another successful service call for South Jersey Backflow, keeping Hoboken’s high-rise residents safe with a properly maintained backflow prevention system!