Exactly what I was thinking. Just wanted a gut check.

Thanks everyone!

Taylor Schumacher

From: Fpdcdesign <[email protected]>
Sent: Tuesday, October 28, 2025 8:24 AM
To: Discussion list on issues relating to automatic fire sprinklers 
<[email protected]>
Subject: [Sprinklerforum] Re: Dry System With Flex Drops

Assumption: all spaces where pipe and sprinklers are located will be heated.  
There is nothing that says you can’t (that I am aware of). However, you will 
need to maintain the “U-loop” shape as you would with hard pipe.  Todd Williams
External sender <[email protected]<mailto:[email protected]>>
Make sure you trust this sender before taking any actions.
Assumption: all spaces where pipe and sprinklers are located will be heated.

There is nothing that says you can’t (that I am aware of). However, you will 
need to maintain the “U-loop” shape as you would with hard pipe.

Todd Williams
Fire Protection Design/Consulting
Stonington, CT
860-608-4559



On Oct 28, 2025 at 9:13 AM, <Taylor 
Schumacher<mailto:[email protected]>> wrote:
I have a dry system that is feeding upright sprinklers on sprigs in a heated 
light hazard space. The owner wants to add ACT. I’m wondering if I can use flex 
drops into the ACT. Feels weird, but I cannot find any reason why I shouldn’t.

Taylor Schumacher

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