Tony, if someone else had said what you wrote in your reply, you would be telling them the script was not relevant, yet coming from you, it is perfectly acceptable
My understanding is, you are unable to come up with a suitable reply to what I asked, so you are evading the question instead of admitting you have made a mistake (thinking this was in fact a combi boiler, hence use of non-motorised valves like mentioned in your reply).
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