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  1. 10-02-2007, 07:16 PM #1
    Greg Jenkins's Avatar
    Greg Jenkins
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    Default Gurgling Condensate drain

    Can anyone tell me why I heard gurgling from the condensate drain line (at the furnace) while the furnace was in operation. It was similar to the sound you get if you blow through a straw into a glass of water.

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  2. 10-02-2007, 08:33 PM #2
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    Billy Stephens
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    Default Re: Gurgling Condensate drain

    Greg,

    Restricted drain with no P trap.

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  3. 10-03-2007, 07:30 PM #3
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    Jerry Peck
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    Default Re: Gurgling Condensate drain

    Quote Originally Posted by Billy Stephens View Post
    Restricted drain with no P trap.
    Or ... insufficient trap depth which is allowing the pressure in the unit to overcome the trap depth.

    Jerry Peck
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