Quote:
Originally Posted by jyl
When a house burns, plastic or PEX water supply pipes melt, releasing water pressure. Or the water in copper or steel pipes boils and steam pressure ruptures a pipe or fitting or fixture, releasing water pressure. So as more houses burn, the water pressure goes down.
Water pressure or no, firefighters can’t do much to stop a big Santa Ana-driven wildfire charging out of the canyons and barreling to the ocean.
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You are correct, of course. The mechanical elements of a fire this large are mind-blowing and not in the consciousness of most people...thousands of homes incinerated including all of their plumbing which is connected to the water grid is one of them. None of these things happen when one house burns, no matter how large.