Questions, Answered
Backflow testing FAQ
Everything property owners and managers ask about backflow prevention testing, compliance, and devices across the GTA.
Testing is required once every 12 months. Each device on the property must be tested individually, and any newly installed or replaced device must be tested immediately after installation.
Backflow is the undesirable reversal of water flow that lets contaminated water enter the clean supply. It is caused by changes in water pressure — back pressure or back siphonage — and poses serious health risks.
A Double Check Valve Assembly (DCVA) provides basic protection with two check valves for low-risk applications. A Reduced Pressure Principle Assembly (RP) adds a relief valve for superior protection in higher-risk, high-hazard applications.
Yes. Our team consists of OWWA-certified plumbers and Cross Connection Control Specialists (CCCS) experienced in backflow prevention testing, reporting, and tagging.
If a device fails, corrective action is required before compliance is restored. We handle the repair or replacement, retest the device, and submit the documented results to the City.
Backflow prevention testing is mandatory for industrial, commercial, institutional, and Part 3 residential properties as defined by the Ontario Building Code.
It is a systematic evaluation that identifies potential cross-connections in a water system where clean and non-potable water could mix. The goal is to eliminate or mitigate those risks — often by installing backflow prevention devices.
Absolutely. We encourage property owners to book annual inspections ahead of time so compliance deadlines are never missed. We will set a recurring schedule that suits your property.
Our test equipment is calibrated annually with a 5-point verification and pressure test. The calibration is traceable through the National Institute of Standards and Technology (NIST), so results are accurate and verifiable.
Yes. We provide digital test reports, tag the device, and submit results to the City on your behalf so your property stays compliant without the administrative burden.
Still have questions?
Call us directly or send a message — we’re happy to walk you through your compliance requirements.