You can't fix the leak you can't find.

Non-revenue water — lost to leaks, illegal connections and faulty meters — runs at a punishing share of municipal supply in South Africa. addanode makes the network visible: district metering, minimum-night-flow analysis and pressure monitoring localise where water and revenue are disappearing, so crews fix the right pipe instead of guessing.

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What we deliver

Make the losses visible, then prioritise.

District metering (DMAs)

Bulk and zone metering so water entering each zone can be balanced against what's billed — revealing leakage zone by zone.

Night-flow & pressure

Minimum-night-flow analysis and pressure monitoring — the most powerful leak indicators a utility has — to rank zones by loss.

Leak & burst alerts

Sudden flow spikes or pressure drops become an alert in hours, not a problem found weeks later on a flooded road.

How we scope it

Zone first, fix the worst, prove the recovery.

Meter the zones, not every household — DMAs and bulk inflows give a loss map quickly and cheaply, long before universal smart meters.
Rank by night flow — the zone with the highest minimum night flow relative to its size is where your water and money are going. Start there.
Investigate and fix the worst zone — send crews to the right place, regularise illegal connections, then re-measure to prove the recovery.
Manage pressure — cut the loss rate and extend pipe life while you work through repairs.
Make it continuous — NRW creeps back; permanent metering and dashboards on the addaNet platform keep it a standing discipline, not a once-off project.

Built for the network you run: low-power radios (LoRaWAN, NB-IoT) reach remote reservoirs and loggers on small batteries, and edge buffering keeps the night-flow record through load shedding — the very window you most need.

Frequently asked

Non-revenue water questions.

For the full method and what it realistically recovers, see our non-revenue water guide.

No. Start by metering supply zones (DMAs) and bulk inflows — that gives a loss map quickly and cheaply. Rank zones by night flow, fix the worst first, then roll out consumer smart meters only where apparent losses and consumption justify it.

At 2–4am legitimate demand is near zero, so whatever is still flowing into a zone is mostly leakage. Continuous metering makes this minimum-night-flow signal visible and trendable — the single most powerful leak indicator a utility has.

Smart metering paired with active leakage management and repairs typically cuts NRW losses by around 15–20%. It won't close the whole gap alone — pipes still need fixing — but by directing scarce crews at the highest-loss zones first, the recovered value usually dwarfs the cost of the metering.

Three buckets. Physical losses: distribution leaks and bursts, on both the utility and end-user side of the meter. Commercial losses: theft and illegal connections, metering inaccuracies and under-registration, and billing failures — sometimes compounded by corruption. Unbilled authorised use: firefighting, flushing and municipal use that's legitimate but unaccounted. District metering with night-flow analysis tells you which bucket dominates in each zone, so the fix — repair crews, meter replacement or enforcement — goes where the loss actually is.

Want to find where your water is going?

Tell us about your network and zones. We'll set up a district-metering pilot that maps your real losses fast — and shows which zone to fix first for the biggest recovery.

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