Scott,
I agree completely. Thanks for sharing that video, and it does identify
quite clearly that when they're installed properly the Flex Heads
supplying sprinklers will resist the resulting forces and remain in the
installed position. Pretty decent proof of their response.
This does make me think over the provisions in §9.2.3.4.4.1,
§9.2.3.4.4.4, §9.2.3.5.2.2, and §9.2.5.4.2 with respect to upward motion
or thrust that were placed in the standard, probably by some stodgy old
TC members who need to be voted out.
There is some provision in the standard in §9.2.1.3.3.3 which requires
any flexible drop fitting longer than 6' is provided with a hanger. For
such a stodgy old TC member my memory of that discussion was that it was
quite "energetic" and was a frank exchange of contrary ideas at high
decibel levels.
just my memories,
*Ken Wagoner, SET
*Parsley Consulting***
*350 West 9th Avenue, Suite 206
*Escondido, California 92025
*****Phone 760-745-6181*
Visit the website <http://www.parsleyconsulting.com/>
***
On 05/31/2018 2:45 PM, Mitchell, Scott wrote:
https://www.youtube.com/watch?v=n5fJ1lCVE98
Looks like a decent kick to me.
Scott
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