You'll be happy to know that it was in fact my complete idiocy that was the problem, new tyre and tube (one that doesn't have a hole in) and it's pumped up fully with no leak.
@Hat_He_Chewed started
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You'll be happy to know that it was in fact my complete idiocy that was the problem, new tyre and tube (one that doesn't have a hole in) and it's pumped up fully with no leak.