Mysterious black hose connected from wall under my bathroom sink to the sink drainpip
- Thread starter joe pipe
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hj
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hose
The most common reason for it is that it is the condensate drain from your air conditioner.
The most common reason for it is that it is the condensate drain from your air conditioner.
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Jimbo
Plumber
The first thing that comes to mind is a condensate drain from an air conditioner. Do you have an A/C above, such as in the attic? It is common to run the condensate drain down to a wye tailpiece under a sink.
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