Our commitment to the environment

SelTank is Selwood’s smart, modular storage solution designed to help manage excess wastewater flows during storm and high-risk events. Using a PLC-controlled system with live monitoring, telemetry, and reporting, it automatically stores excess flow when a site is under pressure and returns it safely when capacity becomes available again.

The solution was developed in response to growing pressure on water companies to reduce storm overflows, protect rivers and bathing waters, and improve environmental performance. SelTank gives operators a practical way to reduce spill risk while longer-term capital solutions are developed and delivered. It also provides valuable operational data to help customers better understand site behaviour, support planning, and identify wider optimisation opportunities.

As well as helping reduce spill frequency and pollutant load, SelTank supports compliance, resilience, and faster intervention at high-risk sites. Its modular design means it can be deployed quickly, scaled to suit site requirements, and used for both short-term and long-term scenarios.