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John Lansing

@pipedreaming.bsky.social

1.9K followers 550 following 1.7K posts

Plumbing, building codes, engineering design guides, water and nutrient cycle, architecture, embodied carbon, development, cities, and the international variations of them all

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John Lansing @pipedreaming.bsky.social · 1d

I missed it! Yes!

John Lansing @pipedreaming.bsky.social · 1d

There it is! Thanks a bunch! It’s strange that a black line isn’t shown along the margin of the text here which indicates that it’s new in this edition. I already confirmed it’s not in the 1988 edition.

John Lansing @pipedreaming.bsky.social · 1d

Free copy meaning it becomes available to the anyone that makes a free online account at ashrae.org? I’ve always appreciated how many publications are made available for free there.

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John Lansing @pipedreaming.bsky.social · 1d

Great! It would be in General Regulations written in text similar to above (possibly in 311.4 but maybe different).

John Lansing @pipedreaming.bsky.social · 1d

It’s worth clarifying the difference between not permitted vs prohibited here because an AHJ could argue against allowing the single stack as an engineered design (Section 912) in this case.

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John Lansing @pipedreaming.bsky.social · 1d

Anyone have a copy of the 1991 or 1994 UPC? There’s text that was added into the UPC prohibiting the single stack specifically in one of these editions and I can’t find them online. What’s particularly wild is any configuration not listed is not permitted, so someone really went overboard here.

From 1997 UPC edition.

GENERAL REGULATIONS
and tapped for the purpose of making connections thereto, and no cast iron soil pipe shall be threaded.
311.3 No waste connection shall be made to a closet bend or stub of a water closet or similar fixture.
311.4 Except as hereinafter provided in Sections
908.0, 909.0 and 910.0, no vent pipe shall be used as a soil or waste pipe, nor shall any soil or waste pipe be used as a vent. Also, single stack drainage and venting systems, with unvented branch lines are prohibited.

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John Lansing @pipedreaming.bsky.social · 1d

That’s good! 👍

John Lansing @pipedreaming.bsky.social · 1d

What’s the volume difference between the water supply/sewer?

John Lansing @pipedreaming.bsky.social · 1d

This is an estimated volume based on the water supply, and the sewer $/volume is usually much higher than the water supply. Separate water meters are often installed on irrigation systems and the volume is removed from the sewer cost (since the water goes to the soil rather than the sewer).

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John Lansing @pipedreaming.bsky.social · 1d

Indoor gas meters are unusual and explicitly prohibited in many areas but there are some exceptions in other cities (like NYC). The pressure regulator, which is usually part of meter assembly, releases methane while it converts the high pressure gas to low pressure gas.

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John Lansing @pipedreaming.bsky.social · 1d

Please tell me the gas regulator to the meters is outside 🫣

Arrow pointing at has regulator next to meter

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John Lansing @pipedreaming.bsky.social · 1d

Drains are never metered (except in rare industrial cases) and gas meters are located outside so this would be referring to electrical meters most likely. Water meters inside are unlikely in older buildings like this.

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John Lansing @pipedreaming.bsky.social · 2d

Thank you!

John Lansing @pipedreaming.bsky.social · 2d

It’s easy to see the influence of Kongjian Yu’s work on this project.

Photos of Sponge City at Shenyang Jianzhu University. Photos show people walking along a boardwalk with high wetland grasses and looking into the water

John Lansing @pipedreaming.bsky.social · 2d

This reduces indoor water use by nearly half while managing stormwater.

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John Lansing @pipedreaming.bsky.social · 2d

Some diagrams of this system here.

Water treatment schematic showing equipment including a filters, pumps and tanks

Water treatment schematic showing equipment including a filters, pumps and tanks as well as ponds

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John Lansing @pipedreaming.bsky.social · 2d

As water travels to the lower pond by gravity, water is pumped into the the small treatment system (ultrafiltration with UV) and processed to non-potable water quality standards, which is then used for the water supply to clothes washing machines and WC flushing in the neighborhood.

Water treatment system diagram through the glass of the building

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John Lansing @pipedreaming.bsky.social · 2d

Stormwater is collected in wetlands near the housing, introducing wildlife and acting as an amenity with boardwalks.

Wetland with four story multifamily buildings wrapping around it

Wetlands with buildings in the background

John Lansing @pipedreaming.bsky.social · 2d

This reminds me of the recycled water treatment building in the Nye suburb of Aarhus, Denmark.

Photo of glass wall on an A-frame building near a pond with grass growing around it

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John Lansing @pipedreaming.bsky.social · 2d

Just realized today marks one year since I started this account. 🎂

John Lansing @pipedreaming.bsky.social · Oct 12

Hi all 👋 looks like I found where all the action is at

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John Lansing @pipedreaming.bsky.social · 2d

Current mood in Portland

The inflatable frog with Vietnam dog meme with helicopters

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John Lansing @pipedreaming.bsky.social · 3d

The standalone bidet is such a fascinating fixture. It’s like a sanitary utility sink.

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John Lansing @pipedreaming.bsky.social · 3d

Yes, this is standard.

John Lansing @pipedreaming.bsky.social · 3d

I relate. We can blame US plumbing manufacturers for failing to introduce the European washdown WCs to comply with the 1992 EPAct, resulting in the worst flushing WCs ever produced. They would not abandon the siphonic-type WCs but thankfully they ended up figuring out how to make better ones.

John Lansing @pipedreaming.bsky.social · 3d

It’s funny that this is odd yet putting an electrical outlet under the kitchen sink for a mini wood chipper is perfectly normal in the US and even considered an absolute must in many cases.

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