# Why are tankless toilets mainly in commercial buildings?

**URL:** <https://boards.straightdope.com/t/why-are-tankless-toilets-mainly-in-commercial-buildings/465344>\
**Category:** Factual Questions\
**Created:** [September 26, 2008, 3:48pm UTC](https://boards.straightdope.com/t/why-are-tankless-toilets-mainly-in-commercial-buildings/465344 "2008-09-26T15:48:20Z")\
**Posts on this page:** 2\
**Page:** 2

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**Author:** ![Fear\_Itself](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/fear_itself/32/19637_2.png) [@Fear\_Itself](https://boards.straightdope.com/u/Fear_Itself)\
**Post date:** [September 28, 2008, 11:33pm UTC](https://boards.straightdope.com/t/why-are-tankless-toilets-mainly-in-commercial-buildings/465344/21 "2008-09-28T23:33:57Z")

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> [@vetbridge](#):
>
> And here is a general discussion of [upflushing basement toilets.](http://www.naturalhandyman.com/iip/infplumb/infupf.html)

If I had any inkling my toilet was going to upflush, I would stand back with a towel over my head!

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**Author:** ![Musicat](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/musicat/32/20189_2.png) [@Musicat](https://boards.straightdope.com/u/Musicat)\
**Post date:** [September 28, 2008, 11:56pm UTC](https://boards.straightdope.com/t/why-are-tankless-toilets-mainly-in-commercial-buildings/465344/22 "2008-09-28T23:56:22Z")

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**Una Persson** once said this about his tankless toilet: “My pressure-assist toilet has never clogged. Every time you flush it your ears pop, papers fly into the room, and you have to count the cats.”

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