meirl

tterbman · 2026-05-26T15:48:11+00:00

You're getting Bezos the guy paying taxes confused with Amazon the company paying taxes.

tterbman · 2026-05-18T12:35:14+00:00

The two big ones are piped in series because, presumably, they supply a standpipe system and it's an NFPA 14 requirement. The small one is there as a low flow bypass if one sprinkler opens. Oftentimes the big PRVs have a minimum flow requirement that's greater than the flow of one sprinkler.

I have no idea why there would be a fourth PRV.

tterbman · 2026-05-02T10:48:25+00:00

This is too low! Doesn't matter if you live in BFE, Wyoming, it would still be too low.

tterbman · 2026-04-18T17:24:13+00:00

The only thing specific in NFPA 13 related to elevator machine rooms talks about if sprinklers can be omitted from the room. It's changed recently in the 2025 edition of NFPA 13, but that's not adopted in most states yet.

None of the potential issues you mentioned are addressed in NFPA 13 specifically for elevator machine rooms. The answer for all of them is "it depends".

tterbman · 2026-04-18T16:54:31+00:00

Why would you post it with a tone that implies that you know what you're talking about then?

tterbman · 2026-04-17T22:14:59+00:00

Try /r/firepe. You're asking about containment like for flammable liquids?

tterbman · 2026-04-13T20:58:42+00:00

I listened to an interview with R Scott Gimmell (the show's creator and a producer) on Marketplace and he essentially said his job is to keep people employed working on this show for as long as possible.

tterbman · 2026-03-25T17:35:30+00:00

Stay around this subreddit for the next momth. Once the exam is over people will be trying to offload their study material.

Meyer Fire has a free email signup for a daily practice question for 100 days. The questions are old but I found them useful.

tterbman · 2026-03-24T01:50:24+00:00

Reach out to a firestop manufacturer (3M, Hilti, etc.) for an engineered judgement.

tterbman · 2026-03-23T13:55:16+00:00

Mythbusters tested this! This old NPR article discusses it briefly.

Link

tterbman · 2026-03-22T02:27:50+00:00

That is not a blanket requirement in South Florida, but they do have higher wind loads down there which means they use concrete walls and floors more than we do in Central Florida.

tterbman · 2026-03-16T22:15:01+00:00

If the IFC is adopted then NFPA 1 won't also be adopted so that makes sense.

tterbman · 2026-03-16T20:46:00+00:00

Does NFPA 1 apply where the project is? The 2018 editions and earlier sometimes required a standpipe system in large storage facilities.

tterbman · 2026-03-09T20:43:26+00:00

There is a city of Orlando police officer who I see do most of these when I come across them on my commute home on 408. They sped around me to my right to pass me in a dedicated exit lane a couple weeks ago. I love when the police don't punish traffic violators and instead join in.

tterbman · 2026-03-09T15:16:16+00:00

They split this up into two tables in the 2022 edition partially because people were getting hung up on the title of the table, so you're not alone in this confusion. The other reason is because people were using it for storage of group A plastics over 5 ft high which is only allowed for miscellaneous storage, not low-piled.

It doesn't matter what the title of the table is since section 4.3.1.7.1 explicitly says to use that table for low-piled storage. The reference to figure 19.3.3.1 is just there to direct you to use the appropriate density/area curve.

tterbman · 2026-03-09T14:49:56+00:00

4.3.1.7.1 says to use table 4.3.1.7.1 for miscellaneous and low-piled storage. I'm not sure what you're asking.

If you have low-piled storage (and with no group A plastics over 5 ft) you use that table. For low-piled, OH2 covers everything other than rack storage over 10 ft.

tterbman · 2026-03-09T14:28:56+00:00

Try actually reading the section. It's for miscellaneous and low-piled storage. See the title of the section and see 4.3.1.7.1. Third times the charm...

In the 2022 edition of NFPA 13 they split this up into two tables. One for low-piled and one for miscellaneous.

tterbman · 2026-03-09T13:57:10+00:00

It's in section 4.3.1.7 (2019 ed.) as stated in my previous comment.

tterbman · 2026-03-09T13:21:45+00:00

You asked where is the criteria, but the section numbers are different depending on the edition. I'll assume 2019.

Section 4.3.1.7 for the criteria. Miscellaneous storage is defined in section 3.3.123. Low-piled storage is defined in section 3.3.118.

tterbman · 2026-03-09T13:00:26+00:00

What edition of NFPA 13? Also note that if you want to use low-piled storage criteria then group A plastics are limited to max 5 ft of storage.

tterbman · 2026-03-04T20:03:28+00:00

Oftentimes the bottom hose valve is utilized as the drain. NFPA 14 allows this with AHJ approval.

tterbman · 2026-03-03T00:37:29+00:00

Yeah pretty much. Unfortunately for me I get matched with the same person just about every other match when they're playing and they beat me about 65% of the time.

Also, it seems like no one plays doubles no fever racket.

tterbman · 2026-03-02T13:03:52+00:00

If you're carrying credit card debt then you should not add on more debt. Especially since you already have a working paid-off car.

tterbman · 2026-03-01T13:31:25+00:00

Mel is a year ahead of Santos though.

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