Sewer Flow Monitoring
Temporary and permanent flow monitoring for councils and water authorities, installed by trained crews Australia-wide.
At a glance
- Detectronic MSFM metersArea velocity, intrinsically safe, ATEX and IECEx
- Temporary or permanentFrom short I&I studies to long-term master planning
- Rain gauges alongsideRIMCO 7499 gauges show how rain affects the network
- Full access to your dataOn our platform, or by API into your own systems
Good decisions about a sewer network start with good data from inside it. EDS has been putting flow meters into Australian sewers for more than three decades.
We bring the instruments, the crews and the data platform, and we stay until the data has answered your question. Our own crews install and look after every site. And you get all the data, not just a report at the end.
Why choose EDS
Australia’s largest supplier of water and wastewater monitoring equipment, with our own crews and our own data platform.
Results from the field
Twenty short-term flow meters and on-site rain gauges showed three subcatchments carried 65% of the I&I. Capital went into relining and inflow reduction instead, and peak wet weather flows fell 35% within two years.
Sewer monitoring across the Wulguru and Pallarenda catchments, to inform the council’s infrastructure planning and management.
4 more results from EDS programs
- 24 huntil flows were back at baseline after relining
- 15sites of sewer flow and rainfall monitoring in eight weeks
- 40%less variation in depth and flow during rain
- 30%less spent on unnecessary relining
What is included
- Temporary and permanent flow monitoring
For I&I studies, model calibration and compliance reporting.
- Analysis and reporting
Reports that are easy to read and act on, for planning and regulatory compliance.
- Sites chosen properly
Hydraulic site selection and careful installation, because accurate data starts with the right spot in the pipe.
- Rainfall alongside
RIMCO 7499 tipping bucket rain gauges in the catchment show how each storm moves through the network.
- Data where you want it
Readings arrive in EDS FlowSense as they are taken, or by API into the systems you already run.
Applications
- Calibrating your sewer model for long-term planning
- Finding the sources of inflow and infiltration, and cutting treatment costs
- Assessing capacity before you expand
- Meeting environmental regulations
- Catching blockages and failures early
Common questions
How long does a flow monitoring program run?
It depends on what the data has to answer. Short I&I studies typically run 6 to 12 weeks, long enough to capture wet weather. Long-term monitoring runs across seasons. It shows how infiltration changes with groundwater through the year, and what past works achieved.
How often are readings logged?
Typically every 1 to 5 minutes. That captures storm peaks, and the daily dry weather pattern that analysis and modelling rely on.
Is the equipment safe to install in a live sewer?
Yes. The Detectronic MSFM meters in our fleet are intrinsically safe and certified under ATEX and IECEx, and trained EDS crews do every installation.
Do we get the raw data, or only a report?
Both. You get the reports and full access to the data, in EDS FlowSense or by API.
Is rainfall measured as well?
Yes. We install RIMCO 7499 tipping bucket rain gauges in the catchment, so each wet weather response can be read against the rain that caused it.
Do we have to buy the equipment?
No. You can buy the instruments, hire them, or take Data as a Service with no capital outlay. Under DaaS, we choose the sites, install and maintain the equipment, and deliver validated data.
How a program runs
From the first call to data you can act on.
- 01
Scope and site selection
Agree what the data has to answer, then choose sites by their hydraulics, not their convenience.
- 02
Install and commission
Trained EDS crews install intrinsically safe instruments, Australia-wide, and check every site before it goes live.
- 03
Monitor and validate
Readings arrive over 4G into FlowSense, with continuous QA/QC and alarms when something changes.
- 04
Report and recommend
Validated data and a report that shows where the problems are and what to fix first, or a feed into your model by API.
What the flow meter sees in a storm.
Send a storm through a model catchment and watch the hydrograph respond. The gap between measured flow and the dry weather pattern is inflow and infiltration: water that should never have reached the sewer.
Tap or point at the chart to read values, or focus it and press ← →
600 mm pipe. Area velocity meter at the invert; dashed lines are the alarm levels.
An illustrative model of a 600 mm sewer, not live data. Flow is wetted area multiplied by velocity, the way an area velocity flow meter measures it.
Talk to the people who measure it.
Tell us about your network, site or project. A real person from our team will come back to you.