Beer Hackett sewer improvements

Wessex Water invested heavily to improve its assets to reduce its impact on the local environment. A sewer main near Beer Hackett, suffering from ingress, was identified. Selwood was called in to provide a temporary overpumping solution that would enable Wessex Water’s construction teams to carry out essential work safely and reduce the risk of environmental harm.

• The 350m discharge length ran alongside the River Wiggle, a tributary of the River Yeo
• The whole overpumping system had to be environmentally friendly and without disruption to the residents in the neighbouring village, Yetminster
• The pumps were needed to operate 24/7
• Adverse weather conditions proved a challenge to the project, causing delays of up to two days

Selwood installed two BBA Eco Stage V pumps in a duty/standby formation, coupled with interceptor drip trays, auto stop/start capabilities, and telemetry. 350m of lightweight, 150mm flanged HDPE pipework was used.

• The flanged pipework ensured no risk of spillage was posed toward the River Wiggle due to its improved vandal resistance
• The Eco Stage V low-emission engines improved fuel consumption and reduced emissions. The pumps were housed in acoustic canopies, reducing noise output and disruption to residents
• Selwood’s pumps were run at their Best Efficiency Point (BEP) to ensure they could run 24/7. The duty/standby configuration ensured there was a backup just in case
• Despite the poor weather conditions, Wessex Water’s construction team and Selwood’s installation team worked collaboratively to complete the installation on time and within budget

• With Selwood’s robust solution in place, Wessex Water could safely carry out the required repairs without worry of the system failing
• The combination of Eco Stage V engines and drip trays mitigated the environmental impact by reducing emissions and preventing the risk of a spill into the River Wiggle
• The local branch location, travel time, distance for delivery vehicles, and ongoing servicing reduced both cost and CO₂
• Stage V engines are designed to reduce soot by up to 85% due to their Diesel Particulate Filter (DPF)
• Stage V engines typically provide increased power and torque by around 28%