Water ingress has defied more than a year's worth of investigation and attempted cures. It has now become clear that the main ingress is not from that gap between the tank and the walls, though that was part of the problem and is now comprehensively fixed.
In fact the water has been coming in above the tank base plates where is has accumulated. That can only mean that the fibreglass roof inside the tank has failed, either locally, near the one and only outlet, or more generally. A new roof, over the old one is necessary. Inevitably this has meant total clearance of whatever sits on the old roof In other words the decked area above. It has been quite a task to dismantle the decks and a problem was how to store the lengthy components - mainly decking planks and supporting rafters. The obvious place for temporary storage would have been on the ground which would involve lowering them piece by piece and raising them back again. Then, inspiration struck. Why not secure them across the corners of the massively strong tank itself?
For a week of so, the photographers will have to put up with the results but reassembly will be so much more straightforward and the components will be exactly where they are needed. The stacks are tied together securely with tensioned straps and at the western corners the planks are interwoven with the horizontal steel cables of the safety fences. The new roof begins next Monday, 16th September when a week of high pressure if forecast over the UK. Necessity, they say, is the mother of invention.
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