Thank you for your prompt reply.
I know what you mean about the braided hose. I was looking for that myself !! My other boilers have the braided hose and are simple to fill up and return the pressure. I don't live at the property so can't take more photos. But here's another photo taken - sorry, prob not much use.
I can’t see an integral one, and instructions state external, so you’ll need to find that loop. Could be hidden in a cupboard somewhere, perhaps a cylinder cupboard, or even a kitchen cupboard.
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