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Inside Of Water Tank

Reline Of A Leaking
Hospital Tank


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Tank Reline were called in to investigate these leaking potable water tanks in a hospital in London, which fed a significant proportion of the site's potable water. It was clear that a straightforward water tank repair was not going to be possible due to the extensive dilapidation of the tank seals, so a full reline was recommended.

Hospital          3 Day Completion Time
Care Home      5 Day Completion Time


Upon arrival, our team of engineers were on hand to shut off supply and drain the tanks. Once inside, there was clear evidence of debonding in the mastic and delamination of the GRP surface, which poses a significant hygiene risk to the users, especially in a clinical environment.

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All contamination was removed, and the internal surfaces abraded to raise the profile. A specialist adhesive was then used to seal the mastic joints in order to prevent further leaks. Dehumidification equipment was then used to ensure the optimal curing conditions were achieved.


A stripe coat was applied to all high-risk areas within the tank, including all joints and bolt heads. Following this, two coatings of a WRAS-approved polyurethane were applied to all internal surfaces. Once the reline had properly cured, it was re-commissioned and placed back into service, back with our 10-year guarantee. Click the links to learn more on our water tank lining and water tank leak repair services!

"We were delighted with Tank Relines approach to the project. Their engineers were excellent in their responsiveness and knowledge of leak repairs. I'd have full confidence using them again."
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