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+--- Thread: B4 water tank controller (/showthread.php?tid=9943)
B4 water tank controller - Armsp0 - 11-10-2026
We recently completed the installation of a water transfer system between two potable water storage tanks at a remote holiday home and based the control system on a Kincony B4 controller.
One tank is drawn from for a pumped house supply, the second storage tank collects water but had only a manual transfer system to move water to the main house tank for use if the main tank levels were low. This meant access at height to the tank tops to remove bolted down concrete tank lids then reinstatement of the heavy lids on completion of transfer. This work was too physically demanding for the owner and also presented significant safety hazards
The owner wished to have a submersible pump permanently installed in the second storage tank to pump water over to the house tank. The brief was that a web enabled transfer system would operate automatically to transfer at tuneable levels along with a manual override function. Protection logic was to be implemented to prevent transfer operations if water was below critical levels in the storage tank, above high level in the main tank and provide notifications of system faults and low levels in either tank.
A Kincony B4 controller was chosen and custom firmware developed to suit the specification. Integration with Home Assistant allowed sophisticated graphical representation of the water system with a user HMI and of course, remote access. Home Assistant could have been used to provide the entire control functionality but in line with the proven industrial DCS (Distributed Control System) philosophy an autonomous system was preferred. The important role of system monitoring and critical notifications is also provided by Home Assistant.
After installation and commissioning and handover to the owner, operation was monitored for a time for issues and the system has been working without problems to date.
Thanks for a great product Kincony, we have a few installations of these systems completed now and we plan many more. We presently offer controllers for Potable water, Wastewater and Swimming Pools. One system operates over a LoRa communications bridge which solved a difficult installation problem where cabling was impractical and WiFi beyond range.