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Bore Pump Monitoring for Water Level Pressure Flow and Pump Status
A bore pump can be running and still be failing to deliver water where it is needed. A simple run signal tells one part of the story. It shows that power is reaching the motor, or that a controller has called for the pump. It does not show whether the bore is holding level, whether the pump is moving enough water, whether the pipework is under the right pressure, or whether the pump is working harder than it should.
That gap matters. In agriculture, mining, utilities, irrigation, stock water, and process supply, bore faults often develop slowly. A water level falls. Flow drops a little each week. Pressure drifts outside its normal band. Runtime creeps up because the pump takes longer to fill a tank. None of these changes may trip an alarm on their own at first, but together they point to a bore system that needs attention.
A better approach is to connect the main measurements: water level, pressure, flow, and pump status. When those signals are viewed together, operators can see the difference between a healthy pump cycle, a stressed aquifer, a blocked line, a worn pump, or a control fault.
A running signal is useful, but it is not enough
Pump status is still important. A run contact, current switch, variable speed drive signal, or starter feedback can confirm when the pump is on or off. It can also support alarms for failed starts, unexpected stops, or excess starts per hour.
The problem is that pump status alone has no context.
A running indicator cannot confirm:
Whether the bore water level is falling during operation
Whether the pump is delivering the expected flow
Whether pressure is too high or too low
Whether a valve is closed or a line is blocked
Whether the pump is cycling too often
Whether the pump is running dry or close to it
Whether delivery is declining over time
A pump may show `running` while producing poor flow due to worn impellers, a blocked screen, air entrainment, a falling static water level, or a damaged rising main. It may also run normally while a downstream leak wastes water before anyone notices.
The run signal answers one question: is the pump operating? Bore performance needs several more.
Water level shows what is happening in the bore
Water level is one of the strongest indicators of bore condition. It helps separate pump faults from water supply issues.
In most systems, two water levels matter.
Static water level is the level when the pump has been off long enough for the bore to recover.
Pumping water level is the level while the pump is running.
The difference between them shows drawdown. If drawdown increases over time at the same flow rate, the bore may be under stress, the screen may be fouling, or the aquifer may not be recovering as it once did.
A falling water level can show several patterns:
Gradual seasonal decline during dry conditions
Fast drawdown shortly after the pump starts
Poor recovery after a pumping cycle
Level approaching pump intake depth
Increasing drawdown for the same flow
The detail matters. A low level alarm is helpful, but a trend is often more useful. A bore that recovers slowly after each run may still start every day, yet it may be heading towards production limits. On the other hand, a short fall during operation followed by quick recovery may be normal for that bore.
Water level instruments need to suit the site. Deep bores often use submersible hydrostatic level transmitters suspended below the water surface. Some applications may need vented cable, lightning protection, stainless steel or higher-grade wetted materials, or a narrow diameter sensor. Water with high salinity, iron, sediment, gas, or biofouling risk can affect instrument selection.
For deeper or remote bores, installation and retrieval also matter. A sensor that is accurate on paper but hard to install safely may not be the best choice for a long-term monitoring system.
Flow shows what the bore is actually delivering
Flow measurement connects the bore to its real purpose: moving water.
A pump can run for the correct time and hold reasonable pressure, yet still deliver less water than expected. Flow measurement confirms the actual delivery rate and total volume pumped. That makes it easier to detect changes before they become serious.
Declining delivery may point to:
Pump wear
Blocked suction or bore screen
Air or gas in the water column
Falling pumping level
Partly closed valves
Pipe restrictions
Discharge leaks
Incorrect control settings
Flow data is especially useful when compared against pump runtime. If the pump runs for longer but total volume does not increase, the system is losing performance. If runtime stays the same but delivered volume drops, a restriction, pump issue, or falling water level may be developing.
For irrigation and tank filling, totalised flow also supports water accounting. It helps confirm how much water has been used, transferred, or stored. In regions where extraction volumes must be managed carefully, accurate flow data can become more than an operating tool. It can support reporting and water stewardship.
The right flow meter depends on the pipe size, water quality, velocity range, straight pipe availability, and power supply. Electromagnetic flow meters suit many conductive water applications and have no moving parts in the flow path. Mechanical meters may suit simpler sites but can wear or foul depending on water quality. Clamp-on ultrasonic meters can be useful where pipe access and conditions are suitable, although application details matter.
There is no single best flow meter for every bore. The better question is which meter will keep giving reliable readings at that site, with that water, at that duty point.
Pressure reveals restrictions, leaks, and control problems
Pressure measurement adds another layer to bore monitoring. It shows how the pump and pipe system are behaving under load.
Pressure can change for many reasons. Some are normal, such as a tank filling or a valve opening. Others are early fault signs.
Low pressure while the pump is running may indicate a leak, worn pump, low water level, open bypass, or unexpected demand. High pressure may suggest a closed valve, blocked filter, blocked line, jammed non-return valve, or incorrect control setting.
Pressure also helps explain flow.
Measurement pattern | Likely meaning | What to check |
Low flow and low pressure | Pump cannot build head or source water is limited | Water level, pump wear, power, suction conditions |
Low flow and high pressure | Restriction downstream | Valves, filters, blocked pipe, closed outlet |
High flow and low pressure | Open discharge or excessive demand | Leaks, open valves, line breaks |
Normal flow and rising pressure | Restriction starting to form | Filters, pipe scale, valve position |
Pressure is often measured on the discharge line near the bore head, at key points along the delivery line, or near tanks, filters, and irrigation headers. In staged systems, pressure readings before and after a filter can show when cleaning is needed. In long pipelines, pressure at both ends can help detect leaks or restrictions.
For bore applications, pressure instruments should be selected for the expected range and surge conditions. Pump starts and valve closures can create pressure spikes. A transmitter with the wrong range, weak process connection, or poor protection may fail early or give poor data. Cable routing, earthing, lightning exposure, and enclosure sealing also affect reliability in field conditions.
Pump runtime turns measurements into operating evidence
Pump runtime is more than an on or off record. When it is trended with water level, flow, and pressure, it becomes a useful measure of system efficiency and stress.
A healthy bore usually develops a recognisable operating pattern. The pump starts, pressure rises, flow stabilises, water level draws down to a normal pumping level, and the pump stops once the tank, dam, header, or control target is reached. Recovery follows.
Changes to that pattern can reveal problems.
Longer runtime for the same delivered volume can suggest lower pump efficiency, lower bore yield, restrictions, or leaks. Short cycling can point to control issues, pressure tank problems, float faults, or poor set points. Continuous running may show high demand, a stuck control signal, failed stop condition, or delivery that cannot satisfy the system.
Runtime also helps protect equipment. Frequent starts can shorten motor and starter life. Long dry or low-flow operation can damage pumps. A monitoring system can flag abnormal behaviour before the pump fails.
Useful runtime indicators include:
Total hours run per day
Number of starts per hour or day
Longest continuous run
Time from start to stable flow
Time to refill a tank or reach a stop level
Run time compared with volume delivered
These values are simple, but powerful. They help move maintenance from guesswork to evidence. If a bore normally fills a tank in three hours and now takes five, the change deserves investigation even if the pump has not tripped.
The clearest view comes from combining signals
Each measurement has value on its own. The real benefit comes when they are connected.
A coordinated system can show cause and effect. It can answer practical questions that a single instrument cannot.
Is flow down because the water level is falling, or because the pipe is blocked?
Is pressure high because a valve is closed, or because the pump is running at the wrong speed?
Is the pump running longer because demand has increased, or because delivery has dropped?
Is a low level event part of a normal seasonal trend, or is recovery getting worse after every cycle?
This is where a simple bore dashboard, alarm system, or telemetry platform becomes useful. It should show live values, trends, status, and alarms in a way that helps operators make decisions.
A good monitoring view might include:
Current bore water level
Pump status
Discharge pressure
Flow rate
Total volume pumped
Runtime for the current cycle
Daily runtime and starts
Tank or storage level where relevant
Alarm status and communication health
The system does not need to be complicated to be effective. It does need the right measurements, installed in the right places, with clear alarm limits and enough history to see trends.
For example, a bore may show normal pump starts and pressure, but a slow decline in flow and a deeper pumping level. That suggests the issue may be linked to source water or bore condition rather than a downstream pipe fault. In another case, water level may stay stable while pressure climbs and flow drops. That points attention towards filters, valves, or pipe restrictions.
Better fault finding reduces wasted site visits. It also helps prioritise work. A low battery alarm at a remote telemetry unit needs a different response from a dry-running pump or a fast-falling bore level.
Instrument selection should match the bore and the site
Bore monitoring is not a one-size-fits-all exercise. The instruments and communications should suit the bore construction, water chemistry, power availability, access, and reporting needs.
ProSense supplies coordinated monitoring systems for bore pump applications, with instrument selection based on the conditions that affect long-term performance.
Key selection factors include the points below.
Bore depth and installation method
Deep bores need suitable level sensor ranges, cable lengths, strain relief, and retrieval methods. The diameter of the casing and available access can also limit sensor choice.
Water characteristics
Salinity, iron, sand, sediment, hardness, gas, and biological growth can affect level sensors, flow meters, pressure ports, and fittings. Wetted materials should be chosen to suit the water.
Pump and pipe arrangement
Submersible pumps, line shaft pumps, variable speed drives, pressure systems, tank fill systems, and irrigation lines all have different monitoring points. The best location for pressure and flow measurement depends on the hydraulic layout.
Power at the site
Mains-powered sites can support a wider range of instruments and communications. Remote solar-powered sites need low-power devices, correct battery sizing, and careful duty cycle planning.
Communications coverage
Some bores can use cellular telemetry. Others may need radio links, satellite communications, local data logging, or store-and-forward systems. Communication choice should match the site, not the other way around.
Alarm and reporting needs
A stock water bore may need simple low level, no flow, and pump fault alarms. A production bore may need trend data, volume totals, pressure profiles, and integration with existing control systems.
Matching the system to the site avoids common problems such as flat batteries, unreliable signals, fouled instruments, nuisance alarms, or data that looks good but does not help anyone act.
Good alarms focus on behaviour, not just limits
Alarm design is part of monitoring. Too many alarms get ignored. Too few alarms miss early warning signs.
Basic alarms might include low water level, high pressure, low pressure, no flow while running, pump fail, and communication loss. More useful systems add behaviour-based alarms, such as a pump running longer than normal without reaching a target, or flow dropping below its usual range during a cycle.
Alarm delays and conditions matter. A pressure dip at pump start may be normal for a few seconds. A low-flow condition that lasts for several minutes while the pump is running is more serious. A water level that drops below a warning limit during peak seasonal use may deserve attention before it reaches a critical shutdown level.
Trend-based alarms can also help. A gradual decline in flow may not cross a hard limit for weeks, but the direction is still clear. A good monitoring system helps identify that change early enough to plan maintenance.
Better bore monitoring supports better decisions
Bore systems often sit far from workshops, depots, and control rooms. Without good data, every fault can look the same from a distance. Someone gets a call that the tank is low, the pump is running, or water is not arriving. Then the guessing starts.
With connected measurements, the first response can be more informed.
If pump status is on, water level is stable, pressure is high, and flow is low, the likely issue is not the aquifer. If the pump is running, pressure is low, flow is low, and the water level has fallen sharply, the response is different. If the pump is off but the start command is active, attention moves to power, starter, controls, or communications.
This clarity helps with maintenance planning, water security, and asset life. It can also reduce unnecessary travel to remote sites, which matters across Australian rural and regional operations.
Bore pump monitoring works best when it treats the bore as a system. Pump status shows operation. Water level shows source condition. Flow shows delivery. Pressure shows hydraulic behaviour. Runtime shows workload. Together, those signals create a practical picture of performance.
ProSense can supply the instruments, telemetry, and coordinated monitoring approach needed to bring those measurements together. The right system starts with the specifics of the bore: depth, water quality, pump type, pipework, power, communications, and the decisions the data needs to support.
A pump light can tell you that something is running. A connected bore monitoring system can tell you whether the bore is performing, whether conditions are changing, and where to look next.
