Question 1

Why is backflow testing required?

Accepted Answer

Backflow preventers protect the public water supply from contamination. When water pressure drops — due to a water main break, heavy demand, or firefighting — water can flow backward through your pipes and pull contaminants (fertilizers, chemicals, bacteria) into the drinking water system. Texas law and most local water utilities require annual testing to confirm your device is working correctly and keeping the supply safe.

Question 2

How often does my backflow preventer need to be tested?

Accepted Answer

In Texas, most water utilities require backflow preventers to be tested annually — once every 12 months. Your water authority will typically send a notice when your test is due. If you miss the deadline, your water service can be interrupted. B&S Backflow Service tracks your test schedule and sends reminders so you never miss a cycle.

Question 3

Who is required to have a backflow preventer?

Accepted Answer

Any property with a potential cross-connection to the public water supply is typically required to have a backflow preventer installed and tested. This includes properties with irrigation or sprinkler systems, swimming pools or spas, fire suppression systems, commercial food service or medical facilities, and industrial or manufacturing operations. Many residential properties with in-ground irrigation systems are also required. If you're unsure whether your property is covered, give us a call — we can help you find out.

Question 4

Does B&S Backflow Service file the compliance report for me?

Accepted Answer

Yes — we handle all the paperwork. After every test, we submit your compliance report directly to your local water utility on your behalf. You'll receive a copy for your records. For property managers with multiple sites, we track each device and filing deadline so nothing slips through.

Question 5

What happens during a backflow test?

Accepted Answer

A certified tester connects calibrated gauges to your backflow preventer and runs a series of pressure checks to verify that each internal check valve and relief valve is functioning correctly. The test is non-invasive and does not require shutting off water to your entire property — just the line serving the device. Most tests take 20 to 45 minutes. We document the results on-site and submit the report to your water utility the same day.

Question 6

What happens if my backflow preventer fails the test?

Accepted Answer

A failed test means one or more internal components aren't holding pressure as required. Don't panic — a failed device doesn't always mean a full replacement. Our technicians diagnose the issue on the spot and carry common repair parts on every service vehicle. In many cases we can repair the device the same visit and re-test it immediately. If a replacement is necessary, we'll give you a clear recommendation and a transparent price before any work begins.

Question 7

What types of backflow preventers are there?

Accepted Answer

The most common types are: RPZ (Reduced Pressure Zone) — the highest level of protection, required for high-hazard applications like irrigation with fertilizer injection or fire suppression; DC (Double Check Valve) — used for moderate-hazard applications such as standard irrigation systems; PVB (Pressure Vacuum Breaker) — common on residential irrigation systems, must be installed above the highest sprinkler head; and SVB (Spill-Resistant Vacuum Breaker) — similar to a PVB but designed for locations where spillage is a concern. We work with all device types and can advise which is appropriate for your application.

Question 8

How much does backflow testing cost?

Accepted Answer

Testing fees vary depending on the device type, property type, and number of devices. We provide upfront pricing before every job — no surprises. Repair costs depend on what parts are needed; we'll always give you a clear quote before starting any repair work. Contact us for a free quote specific to your property.

Question 9

What areas do you serve, and how do I schedule?

Accepted Answer

We serve residential and commercial properties throughout South Texas and surrounding areas. Scheduling is easy — call us at (210) 632-2358 or submit a quote request through our website. We can usually get you on the schedule within the same week. For commercial accounts or properties with multiple devices, we offer flexible scheduling to minimize disruption to your operations.

Frequently Asked Questions

Requirements & Compliance

Testing & Repair

Pricing & Scheduling

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