Glow Worm Boiler - Filling Loop Water Leak Suggestions

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This boiler was fitted in 1985... 👀 👉 Yes you read that right. This Glow-worm boiler is approaching 40 years old! 👉 It's ironic that a boiler with the name "spacesaver" is so large... but back in the day of floor standing boilers, this was a game changer. 👉 A rare relic these days, and incredibly inefficient to run. But with a basic design there's not much to go wrong. ⚠️ However this does come with risks, and these old boilers have far less safety devices than a modern condensing boiler. ⚠️