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Discussion Starter #1
What is this?

This appears to be a small tube on the right coming off my cold water line near where the water comes into the house (~8').

The line then runs the length of the house and terminates in a big loop at the other end of the house near the furnace.
IMG645.jpg
IMG644.jpg

Thanks In advance
 

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possibly a humidifier water line
 

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Plumbing Contractor
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Since it terminates near the furnace it would be ana waterline for a humidifier. Ice maker lines are the same size, but unless the beer 'fridge was nearby......although having the beer fridge near the furnace is just plain wrong.
 

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Discussion Starter #8
Huh? Is there a refrigerator close to where it ends? If so it may the be supply line for the ice maker.
sorry, I thought you were joking..Its runs about 25' through my unfinished basement,near floor joists, and terminates very close to the furnace.
 

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Roofmaster
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Humidifier

Its probably a water line to feed a furnace mounted humidifier, Obviously now defunct.
 
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