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Backflow Testing

Sprinkler System Backflow Testing

Backflow preventers are essential and required in many applications. While not all single-family residences are required to have backflow preventers between the house water and the municipal water, they are required in some situations. In addition, you should have a backflow preventer between your sprinkler system and your home water system. NationScapes can perform backflow testing to meet annual certification requirements or just to give you peace of mind.

For backflow testing by a certified technician that meets all compliance requirements, contact Denver’s dedicated sprinkler specialist. Please call 303-934-9130 or use our online form to request backflow testing.

What Is a Backflow Preventer?

Normally, water pressure ensures that water flows in one direction: from the pumps, through the homes and businesses connected to the water, then into use, the ground, or drains that lead to the wastewater system. When pressure fails, water might flow the other way. This water might carry contamination that then gets pumped into homes and businesses. Contamination can spread widely, causing illness and/or long-term health problems.

Backflow preventers keep water from flowing back into the clean water supply once it’s entered a home or business. This protects all of us from contamination. For your home sprinkler system, a backflow preventer can keep water contaminated with dirt, pesticides, or fertilizers from flowing back into your drinking water from your sprinkler system.

Backflow Preventer Requirements

In recent years, Denver Water and other municipal water systems have put significant emphasis on backflow prevention to protect the cleanliness and safety of the potable water supply. Technically, every water system that connects to Denver Water or other public water systems is required to have a backflow prevention device. Most industrial, business, and multifamily water systems need a backflow preventer.


However, for most single-family residences, local water regulations hold sway. These regulations don’t require the same level of backflow prevention and testing. In some situations, even a single-family water system needs backflow prevention. Single-family residences must have backflow prevention for:

  • Dedicated irrigation lines
  • Dedicated fire suppression systems
  • Auxiliary water sources such as:
    • Hot tubs
    • Swimming pools
    • Reclaimed or graywater systems
    • Permanent storage tanks
  • Connections to a home’s water supply from home businesses and hobbies such as:
    • Hydroponic systems
    • Doctor’s office
    • Photo labs
    • Hide tanning
    • Metal plating

Single-family homes don’t require backflow prevention because the risk of contamination is considered small. When your home situation raises the risk of backflow by increasing the amount of water in the plumbing or the amount of contamination in the water, you will need backflow prevention.

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Annual Testing Requirements

Once a survey determines that you need a backflow prevention device, then you also need annual backflow preventer testing. Otherwise, Denver Water or another public water system might cut off your water.

An acceptable backflow test must contain:

  • The backflow preventer method type, location, make, model, and serial number
  • The size of the assembly
  • The test date and test result
  • Certification information for the testing technician

Failure to provide all the required information might lead to water shutoff.

Why Choose NationScapes for Backflow Testing in Denver

Since 1947, NationScapes has helped people and businesses in the Denver area to safely use their water and protect the public water supply. Our team of technicians has extensive experience in all aspects of water system installation and maintenance, including backflow testing. Some of our technicians have more than 25 years of experience in the industry, and on average they have 10 years’ experience.

We can do backflow testing for dedicated irrigation lines as well as supply lines to your home or business. We will supply you with test reports that meet legal requirements, protecting your water supply from shutoff while ensuring the public water supply is protected from backflow.

Please call 303-934-9130 or use our online form today to request backflow testing in Denver.