MORE than 200 people armed with water pistols gathered at Helensburgh’s Hill House on Saturday afternoon to test out the innovative chainmail ‘box’ which opened this summer.

Charles Rennie Mackintosh’s domestic masterpiece is said to be dissolving due to more than a century of west coast rain and The Hill House box is part of the National Trust for Scotland’s multi-million pound project to conserve the internationally-renowned building and interiors for generations to come.

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Opened to the public in June this year, the roof and its 32.4 million chainmail rings are designed to shield the building from the elements, allowing it to dry out and for crucial conservation work to take place.

With the sun shining, it was the perfect opportunity for children to drag along their friends and parents for a different kind of water fight.

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And judging by our photographer Tom Watt’s pictures from the day, the youngsters wasted no time in giving The Hill House, their elders and each other a right good soaking.

Though it was all in the name of science, of course...