SPRINKLER TANK REPAIR - LONDON This Franklin Hodge 'Firestore' sprinkler tank, in the basement of a central London hotel was leaking from the bolted sectional panel joints The butyl 'bag' liner inside the tank had perished with age and was letting water in behind it, causing it to float inside the tank. This would not have been a good scenario had there been a demand on the tank for putting out a fire. The tank was being constantly topped up at the ball valve because of all the water leaking out of it across the underground car park. We safely accessed the tank and cut the rubber liner into manageable pieces that we physically removed from within. We could have installed a new rubber bag liner, but our client wanted a watertight system that would last 'forever' and guarantee they didn't have the same problem again. We carried out preparartory sandblasting to the steel & concrete surfaces 150mm both sides of the panel joints. After priming we applied our watertight fibreglass lining system over the keyed areas to seal all the joints. This Franklin Hodge sprinkler cold water storage tank was back into service within the week.