Your Bilge Pump Could Be Saving Your Boat… But It Could Also Be Warning You
Most boat owners only think about their bilge pump when they hear it running.
The problem is that if you’re not on board, you never hear it.
Your boat could be quietly taking on water for days or even weeks while the bilge pump works harder and harder to keep it afloat.
By the time someone notices the problem, the batteries may be flat, the pump may have failed, or the vessel may already be flooded.
A Bilge Pump Operations Counter changes that.

Instead of waiting until water reaches a dangerous level, it tells you something far more valuable:
Your boat is starting to have a problem.
The Hidden Danger Most Boat Owners Never See
Many boats sink while securely tied to their mooring.
Why?
Because a small leak develops.
The bilge pump turns on.
Then it turns on again.
And again.
The owner never knows because every time they visit the boat the bilge looks perfectly dry.
The bilge pump has been hiding the problem.
Eventually one of these happens:
- The batteries become discharged.
- The bilge pump wears out.
- The float switch fails.
- Debris jams the pump.
- The leak gets worse.
Once the pump stops…
Water continues entering the boat.
The outcome can be catastrophic.

A Dry Bilge Doesn’t Mean Your Boat Is Safe
Many owners proudly lift the floorboards and see…
A completely dry bilge.
Unfortunately this tells you almost nothing.
A dry bilge may simply mean the bilge pump has been working continuously to keep the water level low.
Without monitoring how often the pump operates you have no idea whether:
- your hull has developed a leak
- a stern gland is leaking
- a hose clamp has failed
- a skin fitting is weeping
- rainwater is entering the vessel
- a freshwater system has burst
- the leak is slowly getting worse
The bilge pump is trying to tell you something.
Most boat owners never hear the message.
Early Warning Can Save Thousands of Dollars
Imagine your bilge pump normally runs:
2 times per day
One week later it begins running:
25 times per day
Nothing else appears different.
The boat still floats.
The bilge is still dry.
But something has changed.
That increase could be the first indication of:
- a leaking through-hull fitting
- shaft seal wear
- failed hose
- cracked plumbing
- heavy rain entering the vessel
- seawater entering below the waterline
Finding the problem early can prevent:
- expensive flooding
- damaged engines
- ruined batteries
- soaked wiring
- destroyed carpets
- damaged electronics
- insurance claims
- complete vessel loss
The Trek Bilge Pump Operations Counter
The Trek Bilge Pump Operations Counter continuously monitors every time your electric bilge pump starts.
Unlike current sensors that require cutting wiring, the Trek sensor is completely non-contact.
It simply attaches to the bilge pump or its cable and detects the tiny electromagnetic field produced whenever the motor runs. It works with 12V, 24V and 48V electric bilge pumps.

The result is simple:
You always know how hard your bilge pump has been working.
Know Before It Becomes an Emergency
With a Trek Transponder you can check your boat remotely using your mobile phone.
You can see:
- Number of pump operations
- Total pump running time
- Overall vessel status
- Battery condition
If the pump suddenly begins operating far more often than normal, you know something needs investigating before it becomes an emergency. Compatible Trek Transponders manufactured after March 2023 can count pump operations and total run time automatically. This is visible by setting an input as an event counter and results are seen on the vessels Status report.

A Perfect Companion to Your Bilge Alarm
Traditional float switch alarms only warn you after water reaches a high level.
By then the situation may already be serious.
The Bilge Pump Operations Counter provides an earlier warning.
It detects abnormal pump activity long before the water level reaches the emergency float switch.
Together they provide two layers of protection:
Bilge Pump Operations Counter
Detects the problem starting.
High Water Bilge Alarm
Warns if the pump can no longer keep up.
This combination provides significantly greater protection than either system alone.
Simple Installation
Installation takes only minutes.
The sensor can be:
- attached to the side of the bilge pump
- mounted on top of the pump
- cable tied to the pump wiring
No plumbing changes.
No cutting cables.
No modifications to the pump.
Simply connect it to your Trek Transponder and start monitoring.

Ideal For
- Sailing yachts
- Cruisers
- Power boats
- Commercial vessels
- Charter fleets
- Fishing boats
- Liveaboards
If your vessel has an electric bilge pump, you should know how often it operates.
Frequently Asked Questions
Will it work with my existing bilge pump?
Yes. It works with most 12V, 24V and 48V electric bilge pumps.
Does it require cutting wiring?
No.
The sensor is completely non-contact.
Can I see pump activity remotely?
Yes.
When connected to a compatible Trek Transponder you can view pump counts and running time remotely using your mobile phone.
Why not just install a high-water alarm?
Because by the time a high-water alarm activates, the situation may already be critical.
Monitoring pump activity warns you much earlier.
Protect Your Boat Before There’s a Problem
A bilge pump is one of the hardest-working pieces of equipment on your boat.
Don’t wait until it fails to discover you’ve had a leak for weeks.
The Trek Bilge Pump Operations Counter gives you early warning of developing problems, allowing you to investigate while they’re still small, inexpensive and easy to fix.
It is one of the simplest and most cost-effective upgrades you can make to improve your vessel’s safety.
Order Your Trek Bilge Pump Operations Counter Today
Give your bilge pump a voice.
Know when it’s working harder than it should.
Protect your boat, your batteries, your investment—and your peace of mind.
Click here to go to shop and get one ASAP https://www.trektransponder.com.au/shop/bilge-pump-operations-sensor/
