Best Backflow Testing Equipment for Accurate, Reliable Readings
Answering the top buyer questions: which backflow testing kits deliver consistent measurements, are easy to use on job sites, and fit different contractor needs. This guide highlights five leading kits that cater to professional testers, irrigation technicians, and field crew. Each option is evaluated for reliability, ease of use, portability, and value. The table below summarizes the best picks and who they’re best for.
| Product | Brand | Best For |
|---|---|---|
| BAC-FLO-5 Backflow Test Kit | Unlimited, Inc. | All-around field testing with five valves and USA-made build |
| Arbiter Backflow Mako MK5 | Arbiter Store | Digital, quick-read tests with capture and backlit display |
| Watts TK9A Upgrade | Watts | Comprehensive kit with extra line gauge and adapters |
| 34-350 3/4″ Double Check | Onylraep Store | Long-term outdoor use with detachable pressure vessel |
| Arbiter Backflow Mako MK2 | Arbiter Store | Compact, reliable dual-valve digital testing |
BAC-FLO-5 Backflow Test Kit
The BAC-FLO-5 is a five-valve test kit designed for detailed field testing. It includes accessories that support accurate measurements and a clear Schedule 40 PVC sight tube with a built-in swivel connection. Best for: experienced technicians who need a complete, American-made kit with a long warranty for routine testing tasks.
Who it’s best for: contractors who value a robust, ready-to-use kit with durable components and a strong support warranty. Why selected: USA-made with a five-valve configuration simplifies multi-point testing on larger irrigation or plumbing projects.
Caution: heavier setup may require more storage space and transport effort on small jobs.
Arbiter Backflow Mako MK5 Digital 5-Valve
The Mako MK5 combines a five-valve setup with a digital, backlit display and a Capture Button to store readings. It also features a swivel hook for convenient storage on a pipe or ladder. Best for: technicians who prioritize quick data capture and readability in challenging lighting conditions.
Who it’s best for: field crews needing fast, traceable readings with minimal transcription. Why selected: the capture functionality reduces reswings and ensures consistent data during tests.
Caution: the emphasis on digital features may require careful handling to prevent data loss if the device is paused or disconnected during testing.
Watts TK9A Backflow Test Kit Upgrade
The TK9A Upgrade from Watts includes a line pressure gauge and adapters, expanding testing versatility for different piping configurations. Best for: professionals who frequently work with variable line pressures and need additional measurement capabilities.
Who it’s best for: contractors seeking a modular kit that can adapt to diverse irrigation and plumbing setups. Why selected: extra gauges and adapters support more test scenarios without swapping equipment.
Caution: ensure compatibility with existing hoses and connectors to avoid improper fittings during a test.
34-350 3/4″ Double Check Backflow Preventer
The 34-350 is a detachable pressure vessel design double-check backflow preventer intended for continuous pressure piping and service line entries. Best for: irrigation contractors who seek easy maintenance and offline service capability in harsh outdoor environments.
Who it’s best for: teams prioritizing durability and serviceability in outdoor installations. Why selected: detachable pressure vessel reduces maintenance time and enables offline servicing when needed.
Caution: installation requires matching pipe diameters and careful alignment to maintain unidirectional flow.
Arbiter Backflow Mako MK2 Digital 2-Valve
The Mako MK2 offers a compact, dual-valve digital backflow testing solution with a backlit display and a Capture Button optimizations. Best for: technicians who need a lighter, portable unit for smaller projects or routine testing tasks.
Who it’s best for: teams prioritizing ease of transport and straightforward operation. Why selected: budget-friendly entry into digital testing without compromising essential features.
Caution: fewer valves may require more test passes for complex configurations compared with five-valve models.
Buying Guide
What to consider when choosing a backflow testing kit
Valve count and versatility: more valves can speed up multi-point testing but add weight. Choose a kit with a valve setup that matches your typical job profile.
Digital features and data capture: backlit displays and capture buttons improve readability and data integrity, especially in bright sun or low-light conditions.
Maintenance and durability: detachable or serviceable components reduce downtime on outdoor sites. Consider materials suitable for weather exposure and field use.
Portability and storage: heavier five-valve kits require sturdy transport solutions. For tight spaces, compact dual-valve kits may be preferable.
How to compare kits without testing them
- Read the build quality: metal components and robust fittings tend to last longer in harsh environments.
- Check included accessories: ensure you receive hoses, adapters, and sight tubes compatible with common piping standards.
- Evaluate warranty and support: longer warranties can indicate manufacturer confidence and better service options.
Best practice tips for use on the job
- Pre-flight check: inspect hoses, connections, and sight tubes for cracks or leaks before starting a test.
- Label and log tests: use the digital capture features to store readings when possible for traceability.
- Proper storage: store each kit in a protective case to minimize corrosion and damage from outdoor conditions.
Frequently asked questions
- What is the main difference between five-valve and two-valve kits? Answer: Five-valve kits allow more complex testing and faster data collection, while two-valve kits are lighter and suitable for simpler tasks.
- Can digital features improve testing accuracy? Answer: Yes, backlit displays and capture buttons help reduce transcription errors and improve readability in varying lighting.
- Do I need a detachable pressure vessel? Answer: Detachable vessels can lower maintenance time, especially for outdoor installations, but require appropriate tools and procedures to service.
- Are these kits compatible with standard irrigation systems? Answer: Most kits are designed to work with common backflow assemblies, but always verify connector sizes and adapter availability before purchase.
- Which kit is best for field technicians with limited space? Answer: Compact digital kits with dual valves are typically easier to transport and store on small job sites.