Quote:
Originally Posted by WhipperSnapper
So the pipes can withstand the pressures to get water up to 70 storey high? Are then the intermediary pumps throughout the building to control downward pressure from the roof top storage tank or am I completely lost about things.
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Oh yes, they'll use rolled steel pipe with either welded or victaulic connections that are capable of withstanding significant pressure. My sprinkler standpipes are pressurized to 300psi, and I am sure you could go a lot higher than that without issue. One of my last buildings had a rooftop storage cistern for fire protection, in that instance no pump is required at all, it's filled with the domestic booster pumps and all gravity fed should a sprinkler head let go. They don't do a lot of rooftop storage anymore though. It's generally just a big pump, something like this: