Firefighting Water Storage Reservoir, Liverpool

15/06/2022

Project: A fully watertight, impermeable lining system for an existing ‘off-line’ water storage reservoir at the South End Mill site in Liverpool, measuring 16.4m x 25.1m tapering to 21.0m x 1.7m deep.

Client: ADM Milling UK

Summary: The project involved the supply and installation of our Landflex PVC120AP 1.2mm geomembrane above a protective layer of Landflex G3000 geotextile.

Challenges: Prior to any lining works being undertaken, our Butek Landline team identified a number of issues that needed to be addressed before the team could attend the site and commence installation work.
The remedial works undertaken included:
* Removal of loose vegetation
* Removal of trapped air and water pockets under the existing membrane and removal of any damaged sections
* Making good the concrete structure or brickwork that would enable us to create a solid batten fix for our lining material.

The reservoir was an irregular shape with a stepped section to one end and sloped corners with a lower sump section.

Our Solution: The material of choice on this occasion was our Landflex PVC120AP 1.20mm impermeable geomembrane offering great strength and highly flexible properties. The membrane has a yield point of 300% in every direction and was the perfect choice for this project. The material was pre-fabricated into large, suitably sized bespoke panels in our Billericay factory prior to deployment and then trimmed and welded to fit on-site by our directly employed Butek Landline installation technicians. The geomembrane was installed over a layer of our Landflex G3000CBR protective geotextile and secured in place using grp battening with M8 x 55mm galvanised steel stud anchors.

Contract Period: The project was successfully concluded within the specified time frame agreed of four days.