| Plumbing trap shaped like a letter that goes down and then up again |
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| Plumbing trap |
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| Reuben drawing included trap (1-4) |
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| What device prevents smells rising up a waste pipe? (1-4) |
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| Piece of pipe under a sink or toilet that prevents escape of noxious fumes (1-4) |
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| Letter-shaped piece of piping |
New York Times |
04 Aug 2022 |
| Letter-shaped plumbing trap |
The Washington Post |
20 Oct 2020 |
| Letter-shaped plumbing trap |
LA Times Daily |
20 Oct 2020 |
| Pipe section under a sink |
Jonesin |
12 Nov 2019 |
| Vowel-shaped pipe part |
Universal |
31 Oct 2019 |
| Trap in dodgy Danube area removed |
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| Vowel-shaped pipe part |
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| Section of waste pipe |
The Times Concise |
26 Aug 2016 |
| Trap in sub -- ending in sight |
The Telegraph Cryptic |
17 Aug 2015 |