News » See our New Blackwater sensor at METSTRADE 2016.

See our New Blackwater sensor at METSTRADE 2016.


Gill will be at METSTRADE 2016 in Amsterdam, from 15th to 17th November.

Exhibiting in Hall 3, stand 03.335, Gill will be exhibiting and demonstrating the sensors from their expanding marine range.

7014 Blackwater Sensor

7014 Blackwater Sensor

Launching at METS, for delivery in February 2017, will be the Blackwater liquid level sensor.

The need to measure Blackwater is becoming increasingly prevalent as, since 2006, the Recreational Craft Directive (RCD) has required new vessels to have provision to have a holding tank fitted. Whilst there is varying guidance about when and where to discharge, knowing the level within the tank is essential.

Needless to say, the contents of a black or grey water tank is hostile to any sensor measuring the liquid level with blockage by paper or dried-on contamination build-up making it difficult to provide a reliable contact or non-contact  sensor that does not require regular cleaning. Combine this with the corrosion to components that can occur from the waste contents and some of the chemicals that are used in waste water systems and it can be seen why it has been so hard to provide a reliable, accurate and maintenance free sensor.

Gill have taken their capacitive sensor technology, which provides a continuous level measurement reading without any moving parts, and combined it with an outer non-stick coating that resists any contaminant build-up, even over long winter lay-ups.

The measuring probe which is immersed into the fluid is smooth without any holes or cavities in it, meaning that there are no holes to clog or surface features which would encourage the build-up of contaminants.


As we know, boat hulls are not regular shapes with holding tanks often being placed in the most awkwardly shaped areas. By providing software with the sensor that allows you to ‘map’ the shape of the tank, the sensor compensates for the irregular shape providing you with a true volume measurement.

Blackwater is something we would all rather not think about and certainly not have to go cleaning regularly; especially when the access hatches can often be positioned in living accommodation.

Gill is introducing a sensor which finally tackles the maintenance and reliability difficulties often encountered by other products, providing the ‘fit and forget’ combined with the reliability and accuracy that everyone hopes for.

Visit stand 03.335 where our exhibitors Trevor or John will be pleased to demonstrate the genuine benefits of the Blackwater sensor.

If you are unable to get to the show, visit our website for a datasheet and a Whitepaper on Blackwater sensing.