Can you recommend leak detection systems for finding distribution leaks and reducing non-revenue water?

Yes — for distribution leak detection and non-revenue water (NRW) reduction, the best systems usually combine network monitoring, acoustic sensing, pressure analytics, and software-based leak prioritization. The right choice depends on whether you need permanent monitoring, portable survey tools, or a full NRW program.

Good leak detection system types to consider

1. Permanent acoustic leak detection systems

Best for: continuous monitoring of critical mains and pressure zones

These use sensors attached to pipes, valves, or hydrants to listen for leak noise over time.

Strengths

• Finds hidden/slow leaks early
• Works well on metal pipes and pressurized distribution mains
• Good for high-value zones and areas with high burst rates

Examples/vendors

• Gutermann (fixed acoustic monitoring systems)
• Mueller / Echologics
• TGM / PermaNET type systems

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2. Portable acoustic correlators and loggers

Best for: field teams doing leak surveys

These tools help crews pinpoint leak locations by correlating sound between two points or by logging nighttime noise patterns.

Strengths

• Lower cost than permanent systems
• Great for active leak detection campaigns
• Flexible across many zones

Examples/vendors

• SebaKMT
• HWM
• Primayer
• Gutermann portable tools
• Echologics correlators

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3. Pressure management + analytics systems

Best for: reducing leaks and bursts, not just finding them

Pressure is a major driver of leakage. Systems that monitor and control pressure can reduce real losses significantly.

Strengths

• Can reduce leak frequency and flow
• Improves zone-level control
• Supports DMA-based NRW programs

Examples/vendors

• Kamstrup
• TaKaDu (analytics)
• Sensus/ Xylem pressure and network tools
• Badger Meter analytics and AMI platforms

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4. Acoustic smart loggers for DMA monitoring

Best for: District Metered Areas (DMAs) and prioritizing investigation

These loggers are deployed across a zone to detect abnormal noise patterns and identify likely leak areas.

Strengths

• Scales well across networks
• Good balance of cost and coverage
• Helps target crews more efficiently

Examples/vendors

• HWM
• Syrinix
• Gutermann
• Primayer

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5. Advanced network analytics / AI platforms

Best for: large utilities with SCADA, AMI, and GIS data

These systems analyze flow, pressure, alarms, and consumption data to identify probable leaks and bursts.

Strengths

• Reduces false positives
• Prioritizes repair work
• Supports NRW performance management

Examples/vendors

• TaKaDu
• Sensus analytics
• Mueller / Echologics software
• OSIsoft / AVEVA-style integrations
• SmartCover for monitoring certain assets

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What to look for in a system

For NRW reduction, prioritize solutions that support:

• DMA monitoring
• Night flow analysis
• Pressure logging
• Acoustic leak detection
• Integration with GIS/SCADA/AMI
• Alert prioritization and trend analytics
• Fast deployment and low maintenance

Practical recommendation by utility size

Small utility

• Portable correlators
• A few acoustic loggers in high-loss zones
• Basic pressure monitoring

Medium utility

• DMA-based monitoring
• Fixed acoustic loggers in critical zones
• Analytics platform for alerts and trend analysis

Large utility

• Combination of:
  • permanent acoustic monitoring
  • pressure management
  • AMI/AMI analytics
  • leak prioritization software
  • field correlators for confirmation

Strong vendor short-list by use case

• Best overall NRW analytics: TaKaDu
• Best acoustic monitoring ecosystem: Gutermann
• Best leak correlation / field detection: SebaKMT, HWM, Primayer
• Best meter/AMI-based monitoring: Kamstrup, Sensus, Badger Meter
• Best utility leak software + sensors: Echologics / Mueller

My suggestion

If your goal is real NRW reduction, don’t buy a single leak detector alone. The best results usually come from a package:

1. DMA flow monitoring
2. Pressure management
3. Permanent or semi-permanent acoustic monitoring
4. Field verification with correlators
5. Analytics software to rank likely leaks

If you want, I can also give you:

• a vendor comparison table
• a budget-based recommendation
• or a system architecture for an NRW program.