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    crud's Avatar
    crud Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jul 13, 2011, 11:44 AM
    A/c Drain noise
    Got new a/c unit. The drain is gravity fed out of the a-coil box and drains outside the house. It constantly makes a clicking and gurgling sound draining water. There is no restriction and water drains fine. What causes the noise and how do I stop it?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jul 13, 2011, 01:26 PM
    Install a trap in the drain line.
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
    Plumbing Expert
    		  
    #3

    Jul 13, 2011, 03:58 PM

    I agree completely with hvac1000 (nice to hear from ya). Yep install a running trap in the horizontal prortion of the drain. The noise is from air blowing through the drain. A trap will eliminate this.
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