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Originally Posted by RustyShackleford
So you're saying it's probably not a coincidence that the pipe junction that failed
the other night is for one of the water lines (the cold one) to my washing machine ?
Interesting. Makes sense I guess. The inertia of water flowing in a pipe is analogous
to an electrical inductor, in which voltage (water pressure) is proportional to derivative
of current (water flow). So an abrupt change in flow generates a big pressure pulse.
Time to get one of these water-hammer arrestor dohickies. Why are they better than
one you just improvise with a vertical dead-end piece of pipe with air in it ?
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I recently replaced my water heater (freebie lifetime item from Lowes!) and Holy crap! the damn thing musta weighed 200 lbs. It was filled with sand and beach crud! Amazing, and it was on the second floor 
Moral of the story.... if you're by-the-sea, get the lifetime warrantee unit
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In a panamax down by the river.
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