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Archives: TankMaster Knowledge Base

On By mtooley
inInstallation

Where to Mount TankMaster & Environmental Protection

Where to Mount TankMaster & Environmental Protection

Overview

TankMaster is designed to be mounted in a dry, protected location inside or on the RV.
Proper placement and environmental protection are critical for long-term reliability.

The TankMaster enclosure is not waterproof or weatherproof by default.
If mounted in an area exposed to moisture or the elements, additional sealing is required.

Recommended Mounting Locations

TankMaster should be mounted in one of the following locations:

  • Inside an RV basement or storage compartment
  • Inside an enclosed utility bay
  • On an interior wall or frame near the tank
  • Any enclosed space that remains dry

These locations provide protection from rain, road spray, and direct exposure.

Locations to Avoid

  • Direct exterior mounting without protection
  • Areas exposed to road spray or standing water
  • Near exhaust components or high-heat sources
  • Areas with frequent condensation or dripping water

Mounting in these locations without protection may result in moisture damage.

Environmental Conditions

TankMaster is designed for typical RV operating environments.

  • Normal ambient temperatures inside compartments
  • Occasional vibration from travel
  • Normal humidity levels found inside enclosed RV spaces

It is not designed for continuous exposure to rain, snow, or standing water
unless properly sealed.

When Weatherproofing Is Required

Weatherproofing is required if the TankMaster is mounted in a location that:

  • May be exposed to moisture or humidity
  • Could experience condensation
  • Is near exterior openings or vents

How to Weatherproof the TankMaster

Sealing the Enclosure

  1. Ensure the enclosure is clean and dry
  2. Inspect the seam between the lid and the base
  3. Apply a thin bead of 100% silicone sealant along the seam
  4. Smooth the sealant to create a continuous seal

Sealing Cable Entry Points

  1. Identify all cable entry points
  2. Apply silicone sealant where cables enter the enclosure
  3. Ensure sealant fully surrounds each cable

This prevents moisture from wicking into the enclosure through the cables.

Sealant Recommendations

  • Use RTV or outdoor-rated silicone sealant
  • Avoid rigid adhesives or epoxies
  • Sealant should remain flexible after curing

Important Notes About Weatherproofing

  • Do not completely encapsulate the enclosure in adhesive
  • Do not block the LED viewing opening
  • Allow sealant to fully cure before powering the unit

Inspection & Maintenance

  • Periodically inspect the enclosure for moisture
  • Check sealant condition during routine RV maintenance
  • Reapply sealant if cracks or gaps appear

Common Mistakes

  • Assuming the enclosure is waterproof out of the box
  • Mounting in exposed locations without sealing
  • Using hard-setting adhesives instead of flexible sealant

Tips for Best Results

  • Choose the driest location possible
  • Weatherproof only when necessary
  • Keep sealing simple and serviceable

Related Articles

  • Mounting the TankMaster Sending Unit
  • Installing Contactless Tank Sensors (S1–S4)
  • Power & Reboot Behavior
  • LED Status Meanings
On By mtooley
inTrouble Shooting

How Bluetooth (BLE) and WiFi Connectivity Work

How Bluetooth (BLE) and WiFi Connectivity Work

Overview

TankMaster uses Bluetooth Low Energy (BLE) as its primary communication method,
with WiFi used as a secondary fallback when Bluetooth is not available.

The system is designed for local connectivity within and around your RV.
It does not rely on cloud services or remote internet access.

Primary Communication: Bluetooth (BLE)

Bluetooth Low Energy is the default and preferred connection method for TankMaster.

  • Used for initial setup and pairing
  • Used whenever the phone or tablet is within Bluetooth range
  • Lowest power consumption
  • Most reliable connection inside the RV

Typical BLE Range

  • Approximately 30 feet in open space
  • Range may be reduced by RV walls, tanks, wiring, and metal structures

When Bluetooth is available, the app will always prefer BLE,
even if WiFi connectivity is also available.

Secondary Communication: WiFi

WiFi is used as a fallback connection when Bluetooth is out of range.

  • Used automatically by the app when Bluetooth is unavailable
  • Requires the TankMaster and mobile device to be on the same local WiFi network

WiFi IP Addressing

TankMaster does not use a fixed IP address.

  • The IP address is dynamically assigned by the local router (DHCP)
  • The IP address may change over time
  • No manual IP configuration is required

Typical WiFi Range

  • Approximately 100–300 feet, depending on the router
  • Range may be reduced by RV construction materials
  • Metal framing, tanks, and appliances can impact signal strength

How the App Chooses the Connection

The TankMaster app automatically selects the best available connection:

  1. Bluetooth (BLE) is always tried first
  2. If Bluetooth is unavailable, WiFi is used
  3. No user action is required to switch between connections

Because Bluetooth is preferred, the WiFi connection indicator may not show as connected
when Bluetooth is active.

Local Connectivity by Design

TankMaster is intentionally designed for local monitoring:

  • No cloud servers are used
  • No internet connection is required
  • All communication remains within your local network

Remote access over the internet is not currently supported.

Factors That Affect Range

  • RV wall construction
  • Metal tanks and framing
  • Electrical wiring and appliances
  • Distance and orientation between devices

If connectivity becomes unreliable, moving closer to the TankMaster
will usually resolve the issue.

Common Questions

Why does the app show Bluetooth connected but not WiFi?

This is normal. Bluetooth is preferred whenever available due to lower power usage
and more direct communication.

Do alerts require WiFi?

No. Alerts work over Bluetooth when the app is within range
and can also use WiFi when Bluetooth is unavailable.

Can I access TankMaster remotely?

TankMaster is designed for local connectivity only.
Remote access over the internet is not supported.

Tips for Best Results

  • Use Bluetooth whenever possible
  • Use WiFi as an extended-range backup
  • Be aware that RV construction can reduce signal range

Related Articles

  • Bluetooth Pairing & Re-Pairing TankMaster
  • LED Status Meanings
  • Alerts & Notifications
  • Power & Reboot Behavior
On By mtooley
inUsing the App

Alerts and Notifications

Alerts & Notifications

Overview

TankMaster can send alerts and notifications when tank levels cross configured thresholds.
These alerts help you monitor freshwater, gray, and black tank levels without constantly opening the app.

Alerts are generated by the TankMaster app based on sensor data received from the sending unit.

When You Need This

  • Setting up alerts for the first time
  • Adjusting when alerts trigger
  • Understanding when notifications are sent

How Alerts Work

TankMaster monitors sensor readings and compares them to the configured thresholds.
When a sensor crosses a threshold, the app generates an alert.

  • Freshwater tanks: Alert when reaching the low threshold
  • Gray & black tanks: Alert when reaching the high threshold

The app maintains a rolling 30-day history of sensor data to support monitoring and predictions.

Configuring Thresholds

  1. Open the TankMaster app
  2. Tap the tank you want to configure
  3. Select Thresholds
  4. Set each threshold to match the physical placement of the sensors

Thresholds should always correspond to where the sensors are mounted on the tank.

Enabling Alerts

Alerts are enabled within the TankMaster app.

  • Ensure notifications are enabled for the app in your phone’s system settings
  • Alerts will be delivered as standard mobile notifications

Background Monitoring

The TankMaster app runs in both the foreground and background.
When the TankMaster sending unit wakes up and transmits updated sensor data,
the app checks whether any thresholds have been crossed.

  • If alerts are enabled, a notification is sent
  • This works while the app is in the background

Battery-Powered Units

Battery-powered TankMasters wake periodically to conserve power.

  • Sensor checks occur at configured wake intervals
  • Alerts may not be immediate if the unit is sleeping
  • Shorter sleep intervals provide more frequent updates but reduce battery life

12V-Powered Units

  • Check sensors more frequently
  • Provide faster alert delivery
  • May use Bluetooth or WiFi for communication

What Alerts Do Not Do

  • They do not continuously stream tank levels
  • They do not update in real time while the unit is asleep
  • They do not bypass phone notification settings

Predicted Tank Levels

The app analyzes historical sensor data to estimate when tanks will reach
empty (freshwater) or full (gray/black).

  • Early on, estimates may be basic
  • Accuracy improves as more history is collected

If You Are Not Receiving Alerts

  • Confirm alerts are enabled in the app
  • Verify phone notification permissions
  • Ensure the TankMaster is powered and waking up
  • Check that thresholds are configured correctly

Tips for Best Results

  • Set thresholds to match sensor placement
  • Balance battery life with wake frequency
  • Periodically verify alerts during normal tank use

Related Articles

  • Configuring Tank Thresholds
  • Power & Reboot Behavior
  • Tank Readings Jump or Skip Levels
  • Bluetooth Pairing & Re-Pairing TankMaster
On By mtooley
inTrouble Shooting

TankMaster LED Status Meaning

TankMaster LED Status Meanings

Overview

The TankMaster sending unit includes a status LED visible through an opening in the lid.
This LED provides information about Bluetooth activity, connection state, and general operation.

Understanding the LED patterns can help quickly identify the current state of the device.

Where to Find the LED

  • The LED is visible through a small opening on the top of the TankMaster lid
  • No disassembly is required to view the LED

LED States & Meanings

Bluetooth Connected

  • Color: Blue
  • Pattern: Slow pulse (2 seconds ON / 2 seconds OFF)
  • Meaning: TankMaster is actively connected to the mobile app via Bluetooth

BLE Advertising / Listening

  • Color: Blue
  • Pattern: Fast flash (0.5 seconds ON / 0.5 seconds OFF)
  • Meaning: TankMaster is advertising and listening for a Bluetooth connection

Idle (No Bluetooth Activity)

  • Color: Blue and Green
  • Pattern: Alternating (2 seconds Blue → 2 seconds Green)
  • Meaning: TankMaster is powered on but not connected to the app

Battery-Powered Units

On battery-powered TankMaster units, the LED behavior is different to conserve power.

  • The LED flashes blue briefly when the unit wakes up
  • Wake-up intervals are configurable in the app
  • The default wake interval is every 30 seconds

If the LED is not flashing, the unit may be sleeping.

12V-Powered Units

  • Idle units alternate between blue and green
  • Blue fast flashing indicates Bluetooth advertising
  • Solid slow-pulsing blue indicates an active app connection

What the LED Does Not Indicate

  • Tank level or sensor readings
  • WiFi connection status (12V units)
  • Sensor calibration state

If the LED Is Off

  • Verify the unit has power
  • Check battery installation (battery units)
  • Check wiring and voltage (12V units)

Tips for Best Results

  • Watch the LED during Bluetooth pairing
  • Use LED behavior to confirm the unit is awake
  • For battery units, wait for the blue flash before attempting to pair

Related Articles

  • Bluetooth Pairing & Re-Pairing TankMaster
  • Power & Reboot Behavior
  • Mounting the TankMaster Sending Unit
On By mtooley
inTrouble Shooting

Bluetooth Pairing & Re-Pairing TankMaster

Bluetooth Pairing & Re-Pairing TankMaster

Overview

TankMaster pairing is performed inside the TankMaster app.
You do not pair TankMaster through your phone’s Bluetooth settings.

Each TankMaster has a unique Bluetooth device name that begins with TM-,
which is printed on the back of the sending unit.

When You Need This

  • First-time setup
  • Pairing an additional TankMaster
  • Reconnecting after power loss
  • Using a new phone or tablet

Before You Start

  • Ensure the TankMaster is powered on
  • Have the TankMaster app installed
  • Know the TM-XXXX Bluetooth name printed on the unit
  • Be within a few feet of the TankMaster

Power-Up Indicators

  • Battery units: Blue LED flashes briefly when awake
  • 12V units: Blue/green alternating LED when idle

How to Pair a TankMaster (In-App Pairing)

  1. Open the TankMaster app
  2. Select the tank you want to pair
  3. Tap the option to pair the tank to a TankMaster
  4. A list of nearby TankMaster units will appear
  5. Select the device that matches the TM-XXXX name on your unit

Once paired, the app will remember the TankMaster and reconnect automatically
when it is within range.

If No Devices Appear

  • Confirm Bluetooth permission is enabled for the app
  • Move closer to the TankMaster
  • Wait for the unit to wake up (battery units)
  • Verify the blue LED flashes periodically

Battery-Powered Units (Important)

Battery-powered TankMasters sleep to conserve power.
They only advertise Bluetooth when awake.

  • You may need to try pairing more than once
  • Wait for the blue LED to flash before retrying
  • Patience helps 🙂

Re-Pairing a TankMaster

If pairing worked previously but no longer connects:

  1. Power-cycle the TankMaster
  2. Open the TankMaster app
  3. Select the tank again
  4. Repeat the in-app pairing steps

Re-pairing is performed in the app, not in phone Bluetooth settings.

What Pairing Issues Are Not

  • Not related to sensor mounting
  • Not related to tank contents
  • Rarely caused by firmware issues

Tips for Best Results

  • Pair one TankMaster at a time
  • Use the printed TM-XXXX name to identify devices
  • Stay close during pairing

Related Articles

  • Power & Reboot Behavior
  • LED Status Meanings
  • Mounting the TankMaster Sending Unit
On By mtooley
inTrouble Shooting

Sensor Worked at First, Then Stopped

Sensor Worked at First, Then Stopped

Overview

If a TankMaster sensor worked correctly at first and then stopped responding,
this is almost always caused by a physical mounting or adhesion issue.

In most cases, the sensor itself is functioning normally.

Common Symptoms

  • Sensor initially reported correctly, then stopped triggering
  • Tank reading no longer changes as expected
  • One sensor (S1–S4) appears stuck or inactive
  • Readings became unstable after driving

Why This Happens

1. Adhesive Loosened Over Time

Heat, vibration, humidity, or surface contamination can cause adhesive
to slowly release, even if the sensor appeared secure at first.

2. Sensor Shifted Slightly

Even a small shift or tilt can introduce an air gap between the sensor
and the tank wall, disrupting detection.

3. Dirty or Uneven Tank Surface

Residue left on the tank wall can allow gradual adhesive failure.

4. Sensitivity Was Increased to Compensate

Raising sensitivity may temporarily mask a mounting problem,
but the issue usually returns.

What This Is Not

  • Not a firmware failure
  • Not a Bluetooth connection issue
  • Not normal sensor aging

How to Fix It

Step 1: Inspect the Sensor

  • Check that the sensor is fully flush against the tank
  • Look for lifted edges or loose corners
  • Confirm the sensor has not slid downward

Step 2: Remove the Sensor Completely

Do not attempt to press a loose sensor back into place.

  1. Carefully remove the sensor
  2. Remove all old adhesive from the sensor
  3. Clean the tank surface thoroughly
  4. Use isopropyl alcohol for final cleaning
  5. Allow surfaces to dry completely

Step 3: Remount with Fresh Adhesive

  1. Apply new high-quality double-sided tape
  2. Ensure full coverage on the sensor face
  3. Press firmly for 20–30 seconds
  4. Do not reposition once mounted

Step 4: Reset Sensitivity (If Needed)

  • Return sensitivity to default
  • Adjust gradually only if required
  • Observe behavior during normal tank use

Special Notes for Black Tanks

  • Black tanks experience more vibration
  • Walls are often thicker
  • Adhesive quality is especially critical

Preventing This in the Future

  • Always clean tank surfaces thoroughly
  • Use high-quality automotive or VHB tape
  • Apply firm, even pressure during installation
  • Avoid adjusting sensitivity to mask mounting issues

If the Sensor Still Does Not Respond

After remounting and verifying sensitivity:

  • Check the sensor cable connection
  • Verify the correct sensor number (S1–S4) in the app
  • Power-cycle the TankMaster

Related Articles

  • Installing Contactless Tank Sensors (S1–S4)
  • Tank Readings Jump or Skip Levels
  • Best Double-Sided Tape for Sensors
  • Adjusting Sensor Sensitivity
On By mtooley
inInstallation, Maintenance

Black Tank Installation Best Practices

Black Tank Installation Best Practices

Overview

Black tanks differ from fresh and gray tanks in both construction and use.
They often have thicker walls, reinforced areas, and experience
greater vibration and waste buildup.

Following these best practices will ensure accurate and reliable TankMaster readings
on black tanks.

When You Need This

  • Installing sensors on a black tank
  • Experiencing inaccurate or unstable black tank readings
  • A sensor worked initially, then stopped responding

How Black Tanks Are Different

  • Thicker plastic walls
  • More internal reinforcement
  • Higher vibration during travel
  • Waste buildup along tank walls

These factors require extra attention to sensor placement and sensitivity.

Choosing Sensor Locations

  • Mount sensors on the smoothest, flattest section of the tank
  • Avoid ribs, seams, molded contours, or labels
  • Do not mount near inlet pipes or internal fittings
  • Ensure vertical alignment between sensors

Important: Poor placement is the most common cause of black tank sensor issues.

Surface Preparation Is Critical

  1. Clean the tank surface thoroughly
  2. Remove dirt, residue, or road grime
  3. Use isopropyl alcohol for final cleaning
  4. Allow the surface to dry completely

Any residue can prevent proper adhesion and cause unstable readings.

Mounting the Sensors

  1. Use high-quality automotive or VHB-style tape
  2. Press sensors firmly against the tank wall
  3. Hold pressure for 20–30 seconds
  4. Ensure the sensor face sits completely flush

Sensitivity Adjustment for Black Tanks

  • Black tanks may require slightly higher sensitivity
  • Increase sensitivity gradually
  • Never max out sensitivity immediately

Always confirm mounting quality before adjusting sensitivity.

Common Black Tank Issues & Causes

Sensor Worked at First, Then Failed

  • Adhesive loosened over time
  • Sensor shifted due to vibration
  • Waste buildup affecting signal consistency

Tank Reads Full Too Early

  • Sensor mounted over reinforced area
  • Sensitivity set too high

Tank Skips Levels

  • Air gap between sensor and tank
  • Uneven tank surface

Preventing Future Issues

  • Use only high-quality adhesive
  • Allow adhesive to fully set
  • Avoid repositioning sensors after mounting
  • Inspect sensors periodically

Tips for Best Results

  • Install sensors with an empty tank when possible
  • Test readings during gradual filling
  • Make adjustments one sensor at a time

Related Articles

  • Installing Contactless Tank Sensors (S1–S4)
  • Adjusting Sensor Sensitivity
  • Tank Readings Jump or Skip Levels
  • Best Double-Sided Tape for Sensors
On By mtooley
inInstallation, Maintenance

Best Double-Sided Tape for Tank Sensors

Best Double-Sided Tape for Tank Sensors

Overview

Proper adhesive is critical for reliable TankMaster sensor performance.
A weak or incorrect tape can allow sensors to loosen, shift, or develop air gaps,
leading to unstable or jumping tank readings.

Using the correct tape ensures sensors remain firmly bonded to the tank wall over time.

When You Need This

  • A sensor has fallen off or loosened
  • You are reinstalling or repositioning a sensor
  • Readings jump or skip levels
  • Original adhesive no longer sticks

Why Adhesive Quality Matters

TankMaster sensors must sit flush against the tank wall.
Even a small air gap can cause incorrect or unstable readings.

Low-quality tape can:

  • Peel away over time
  • Fail in heat or humidity
  • Allow sensors to shift while driving

Recommended Tape Types

3M VHB (Very High Bond)

Recommended

  • Excellent long-term adhesion
  • Resistant to heat and vibration
  • Ideal for plastic tank surfaces

3M Automotive Molding Tape

  • Designed for exterior automotive use
  • Good resistance to moisture and temperature changes

High-Bond Foam Mounting Tape

  • Must be rated for automotive or outdoor use
  • Avoid low-density household foam tape

Tape Types to Avoid

  • Standard household double-sided tape
  • Thin craft or office tape
  • Low-cost foam tape with weak adhesive

These tapes often fail after a short period and cause sensors to loosen.

Preparing for Remounting

  1. Remove the sensor completely
  2. Remove all old adhesive residue
  3. Clean the tank surface with isopropyl alcohol
  4. Allow the surface to dry fully

Do not apply new tape over old adhesive.

Applying the Tape

  1. Apply tape evenly to the back of the sensor
  2. Ensure full coverage of the sensor face
  3. Press the sensor firmly against the tank
  4. Hold pressure for 20–30 seconds

Allow Adhesive to Set

  • Avoid moving the sensor after mounting
  • Allow at least 10–15 minutes before routing cables
  • For best results, avoid tank use for 1 hour

Environmental Considerations

  • Cold temperatures reduce adhesive performance
  • If possible, install at moderate temperatures
  • High humidity requires extra surface cleaning

Common Mistakes

  • Reusing old adhesive pads
  • Applying tape to dirty or wet surfaces
  • Using tape not rated for automotive use

Tips for Best Results

  • Use fresh, high-quality tape
  • Apply firm, even pressure during installation
  • Double-check placement before pressing the sensor down

Related Articles

  • Installing Contactless Tank Sensors (S1–S4)
  • Tank Readings Jump or Skip Levels
  • Adjusting Sensor Sensitivity
  • Black Tank Installation Best Practices
On By mtooley
inTrouble Shooting

Tank Readings Jump or Skip Levels

Tank Readings Jump or Skip Levels

Overview

If your TankMaster readings jump suddenly (for example from 0% to 25% or from 25% to 90%),
this is almost always caused by a sensor mounting issue, not a sensitivity problem.

These symptoms are typically related to poor adhesion, air gaps, or uneven tank surfaces.

Common Symptoms

  • Tank jumps from empty directly to 25% or higher
  • Tank skips intermediate levels
  • Tank shows nearly full with only a small amount of liquid
  • Readings change suddenly while driving

What Causes This

1. Air Gap Between Sensor and Tank

Contactless sensors must sit flush against the tank wall.
Any air gap reduces signal stability and causes sudden jumps.

2. Dirty or Uneven Tank Surface

Dust, road grime, or textured tank surfaces prevent full adhesion.
Even small imperfections can cause unreliable readings.

3. Sensor Shift After Installation

If a sensor moves slightly after installation, it may appear to work at first
but become unstable over time.

4. Sensitivity Set Too High

Excessive sensitivity can amplify noise and cause sensors to trigger prematurely.

What This Is Not

  • Not a firmware issue
  • Not a Bluetooth issue
  • Not normal tank behavior

How to Fix It

Step 1: Inspect the Sensor

  • Check that the sensor is fully seated against the tank
  • Look for lifted edges or loose corners
  • Confirm the sensor has not slid or tilted

Step 2: Remove and Remount the Sensor

  1. Carefully remove the affected sensor
  2. Clean the tank surface with isopropyl alcohol
  3. Allow the surface to dry completely
  4. Apply fresh adhesive
  5. Press the sensor firmly for 20–30 seconds

Do not reuse old adhesive pads.

Step 3: Verify Sensor Placement

  • Ensure sensors are vertically aligned
  • Confirm spacing between sensors is consistent
  • Avoid ribs, seams, and reinforced tank areas

Step 4: Reset Sensitivity (If Needed)

  • Return sensitivity to default
  • Increase sensitivity only in small steps
  • Adjust only after mounting is confirmed solid

Special Notes for Black Tanks

  • Black tanks often have thicker walls
  • Sensors may require slightly higher sensitivity
  • Mounting quality is especially critical

Preventing This in the Future

  • Always clean tank surfaces before mounting
  • Apply firm pressure during installation
  • Avoid repositioning sensors after mounting
  • Allow adhesive time to set before use

If the Problem Persists

If readings continue to jump after remounting:

  • Recheck for uneven tank surfaces
  • Try a higher-quality mounting tape
  • Adjust sensitivity conservatively

Related Articles

  • Installing Contactless Tank Sensors (S1–S4)
  • Adjusting Sensor Sensitivity
  • Best Double-Sided Tape for Sensors
  • Black Tank Installation Best Practices
On By mtooley
inInstallation, Maintenance, Trouble Shooting

Adjusting Sensor Sensitivity

Adjusting Sensor Sensitivity

Overview

Sensor sensitivity controls how strongly each contactless sensor responds to liquid inside the tank.
Correct sensitivity settings are essential for accurate and stable tank readings.

Sensitivity should be adjusted only after sensors are properly mounted.

When You Need This

  • After installing sensors for the first time
  • If a sensor does not trigger when liquid reaches it
  • If readings appear delayed or inconsistent

Before Adjusting Sensitivity

Before making any changes, confirm the following:

  • Sensors are firmly mounted with no air gaps
  • Tank surface is clean and flat
  • Sensor cables are securely connected

Important: Increasing sensitivity will not fix poor mounting or loose sensors.

Understanding Sensitivity Levels

Each sensor has an adjustable sensitivity level that determines how much signal is required
to detect liquid through the tank wall.

  • Higher sensitivity = stronger response
  • Lower sensitivity = reduced response

Most installations work correctly with default sensitivity settings.

How to Adjust Sensitivity in the App

  1. Open the TankMaster app
  2. Connect to your TankMaster via Bluetooth
  3. Go to Tank Settings
  4. Select the sensor to adjust (S1–S4)
  5. Increase or decrease the sensitivity gradually

Recommended Adjustment Process

  1. Start with the default sensitivity
  2. Change sensitivity in small steps
  3. Allow the tank reading to stabilize
  4. Observe behavior during normal tank use

Avoid making multiple large changes at once.

Common Symptoms & What They Mean

Sensor Never Triggers

  • Sensitivity may be too low
  • Tank wall may be thicker than expected

Sensor Triggers Too Early

  • Sensitivity may be too high
  • Sensor may be near a reinforcement or baffle

Readings Jump or Skip Levels

  • Sensor is not fully adhered
  • Air gap between sensor and tank
  • Sensitivity set too high

Special Notes for Black Tanks

  • Black tanks often have thicker walls
  • They may require slightly higher sensitivity
  • Avoid extreme sensitivity increases

What Not to Do

  • Do not max out sensitivity immediately
  • Do not adjust sensitivity to compensate for loose sensors
  • Do not change multiple sensors at once

Tips for Best Results

  • Adjust one sensor at a time
  • Test during actual tank filling or draining
  • Give readings time to settle before adjusting again

If Problems Persist

If readings remain inaccurate after adjusting sensitivity:

  • Recheck sensor mounting
  • Clean and remount the affected sensor
  • Return sensitivity to default and start over

Related Articles

  • Installing Contactless Tank Sensors (S1–S4)
  • Tank Readings Jump or Skip Levels
  • Best Double-Sided Tape for Sensors
  • Black Tank Installation Best Practices
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