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Fascinating stuff, thanks for all the answers DerBlitzkrieger.
Two questions:
First, I took a close up look at a sprinkler head once and it looked like there was a skinny red piece of plastic running vertically from the deflector up into the interior of the sprinkler. Was that one of the glass bulb type heads?
Second, can you dispell some of the myths those of us watching movies have gotten used to. You mentioned one at the start of the thread about only individual sprinkler heads going off instead of all of them at once. When I saw this happen in the movies I assumed Hollywood was accurate (silly me) and figured there was some sort of cascade effect going on where one open head would trigger all the others. Thanks for explaining that one. Any others you can think of would be appreciated. How about the actors making it look so easy to set off a sprinkler system. If I were in a situation where I wanted to set off a system (let's say the guys in the black suits are after me), how hard would it be?
Thanks,
Bent
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