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davidmg: Insert new boiler here...
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davidmg: Slots in nicely
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davidmg: But the hole is in the wrong place
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davidmg: That bit is OK
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davidmg: Lovely and neat - but wrong
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davidmg: Spot the error...
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davidmg: Where the hell is that pipe
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davidmg: Nope, not there either
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davidmg: It comes through here... so it should go...
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davidmg: *This* is the right plumbing