Plumbing and Clearing Drains since 1985

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Backflow Prevention Devices

Backflow Testing

Backflow Prevention and Testing For Commercial and Residential Buildings and Irrigation Systems

Our Plumbing Technicians are licensed and certified to install, repair, replace, and test Backflow Prevention Devices.

Commercial Backflow Prevention Devices

  • Our Plumbing Techs can test up to six (6") inch Backflow Prevention Devices. We can repair devices up to four (4") inch on water systems in Oregon and Idaho.

Fire Systems Backflow Prevention Devices

  • Our Plumbing Techs can test up to six (6") inch Backflow Prevention Devices in Oregon only. We are unable to repair any fire system devices in Oregon.
  • Due to specific Idaho licensing requirements, our Plumbing Techs cannot install, test, or repair any fire system backflow Prevention Devices in Idaho.

Backflow into Domestic Water Systems

Backflow from private sources, irrigation, soda machines, commercial and industrial processing and manufacturing water flow back into domestic water systems is prohibited.

Knowledgeable About State and Local Regulations on Backflow Prevention

Backflow Controls

Each state, county, and city may have different regulations governing how backflow prevention systems are installed and inspected, and Treasure Valley Plumbing and Drain Service is prepared to handle those issues.

The State of Oregon requires all commercial and industrial entities on city water systems, as well as all residential homes on City water systems, to have a Backflow Prevention Device installed and inspected according to the regulations.

All devices MUST be tested annually.

Backflow Prevention Devices in Commercial Buildings

All Oregon commercial buildings using city water are required to have a backflow prevention device on their systems. This includes soda and pop machines. The backflow prevention devices are required to be tested by a Certified Backflow Technician, and Treasure Valley Plumbing and Drain Service is your Backflow testing specialist.

We can test up to six (6") inch devices and can repair up to four (4") inch devices on water systems in Oregon and Idaho.

Backflow Prevention Devices in Residential Buildings and Irrigation

All Oregon residences within city limits or connected to city water are required to have a Backflow Prevention Device on their irrigation systems and are required to be tested annually by a Certified Backflow technician.

We are licensed, bonded, and certified to take care of all of your Backflow needs, including installation, repair, replacement, and testing.