Thread: AC CONDENSER DRAINING INTO SINK DRAIN

GUYS---IS IT OK to have the ac units condenser pipe draining into bathroom sink drain pipe if there is a vent stack under that sink--never saw this before thanks cvf

Similar Threads:

• Sink drain drain line configuration
• lAUNDRY SINK DRAINING INTO A SUMPPUMP PIT
• HVAC condensate drain not draining
• Outdoor sink draining into building plumbing vent
• Commercial Kitchen Sinks - No Trap Required If Draining Into Floor Drain?

Originally Posted by CHARLIE VAN FLEET

GUYS---IS IT OK to have the ac units condenser pipe draining into bathroom sink drain pipe if there is a vent stack under that sink--never saw this before thanks cvf

CVF,

I'm not sure what you mean by a "vent stack under the sink". Are you referring to an AAV?

Anyway, I believe you can drain condensate into a tailpiece, but before the trap. After the trap and you run the risk of sewer gases venting back into the HVAC system.

There should be an air gap, usually we find these draining into the washer drain with an air gap

Originally Posted by Gunnar Alquist

CVF,

I'm not sure what you mean by a "vent stack under the sink". Are you referring to an AAV?

Anyway, I believe you can drain condensate into a tailpiece, but before the trap. After the trap and you run the risk of sewer gases venting back into the HVAC system.

Gunnar has it!

Originally Posted by Gary Burnett

Gunnar has it!

Which creates an air break (as shown in your photo) versus an air gap.

Appears to have jumped threads with my reply
Here is the thread I jumped to not of my own accord.
http://www.inspectionnews.net/home_i...blue-glue.html



That appears to be a class of PVC or schedule 40 pipe (DWV)
Hope it is schedule 40.
No AVV.


PVC Hot Blue LAVA Cement.

Its wrong IMO.
Attached thread explains.