Thread: Why did drainpipes used to have a box on the wall?
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charles charles is offline
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Default Why did drainpipes used to have a box on the wall?
In article op.0jb2xvjcwdg98l@glass,
Commander Kinsey wrote:
Why did drainpipes used to have a box on the wall, some sort of overflow if blocked? See link below for an example photo.
https://www.dropbox.com/s/1jry8zas14bmivc/box.jpg?dl=0

I still have them. It provides an air break to prevent feedback.

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from KT24 in Surrey, England
"I'd rather die of exhaustion than die of boredom" Thomas Carlyle
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