Working with Pell Frischmann South West Water’s consulting engineers, Sanivar proposed the use of their innovative Sanitube pressure pipe liner to re-line the subsea section of ductile iron pipe and anchor the lining to the inlet wall of the pumping station with a bespoke Sanigrip fitting which would facilitate a connection to new pipework within the works. Working with principle contractor Kier and Ex Jet the Sanitube liner was installed within a 3 day working window defined by tidal flows. Access to the subsea outlet was facilitated via a specially constructed coffer damn which extended the daily working window. The Sanitube liner was winched into the ductile iron pipe and inflated by compressed air, end seals were then installed to secure the liner in place and facilitate con

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