As one that has worked in design with multiple programs and on the review side as well for a few decades, Mr. Matsuda is most likely correct.
The software is programed to peak as required for standard hydraulic formulas. Occasionally a designer will override and use their own wisdom to “peak” grids and usually it results in either over sized pipe which is a waste of material cost or under sized pipe which I have had to come behind and correct many times. Let the program do its job and always…trust but verify. That’s why we that have been in the industry for a while need to teach the designers with less experience the way hydraulics work not just punch in data or even completely trust a program. Ok, I’m down off the soap box and please tell Rick hi from Ms. Stafford next time you speak 😊 Sue Stafford |Design Manager 3141 Eagles Nest St., Suite 250, Round Rock, TX 78665 [email protected]<mailto:[email protected]> | www.caruthps.com<http://www.caruthps.com/> | O: 512-276-2774 | M: 281-910-7853 [cid:[email protected]] A Fire and Life Safety Company From: Parsley Consulting <[email protected]> Sent: Thursday, April 9, 2026 10:59 AM To: [email protected] Subject: [Sprinklerforum] Re: peaking calc issue Thanks at length to my friend Rick Matsuda, who phoned me with some suggestions, I know have much better understanding of what happened. The contractor did not let the program internally peak the grid, rather they made the entries themselves, and the results went South in too big a way to accept. This is why I keep antacid tablets at my desk. be well everyone, Ken Wagoner, SET Parsley Consulting 3002 Younger Drive Harrisonville, Missouri 64701-3909 Phone: (760) 745-6181 Visit the website<https://linkprotect.cudasvc.com/url?a=http%3a%2f%2fwww.parsleyconsulting.com%2f&c=E,1,Y5zKJKPEh1mBEBqSR-VE9cUKl5y-eyP8BpvmE_5j9ZqW2eJbNphYzrCMBZ-2YuX6d-RRkHI4gQ1FV-cvOeCfRC58uZS9NiToZv2mx7909oCqLvCW_n5hDHeK&typo=1>
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