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#1
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why does sink drain gurgle?
I moved our kitchen sink and of course had to redo the abs trap and drain
connection. Everything works ok but I'm curious why the drain seems to gurgle (for lack of a better descriptive word) after the water has run out. And it also sounds like it's dripping after theres no more water in the sink to run out. Can you suggest a reason and cure ? thanks Frank |
#2
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frankg wrote:
I moved our kitchen sink and of course had to redo the abs trap and drain connection. Everything works ok but I'm curious why the drain seems to gurgle (for lack of a better descriptive word) after the water has run out. And it also sounds like it's dripping after theres no more water in the sink to run out. Can you suggest a reason and cure ? thanks Frank The Gurgle is caused by the water in the trap attempting to self-siphon out. And that suggests that moving the sink connection has disrupted the venting of the trap. Either the trap is now too far from the San TEE and vent or the slop is too great. Or, in the case of sinks which have no vent connection, the horizontal branch is too small to allow air circulation (this kind of self-vent is no longer used but was common up thru the 50's.) You may be able to fix the problem by adding a mechanical vent just downsrtream of the trap. Jim |
#3
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venting issue
"frankg" wrote in message . .. I moved our kitchen sink and of course had to redo the abs trap and drain connection. Everything works ok but I'm curious why the drain seems to gurgle (for lack of a better descriptive word) after the water has run out. And it also sounds like it's dripping after theres no more water in the sink to run out. Can you suggest a reason and cure ? thanks Frank |
#4
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solution : by adding a mechanical
vent just downsrtream of the trap. since it's all glued ABS , how do you add a "mechanical vent" - is that a piece you buy and attach to the ABS ? I moved our kitchen sink and of course had to redo the abs trap and drain connection. Everything works ok but I'm curious why the drain seems to gurgle (for lack of a better descriptive word) after the water has run out. And it also sounds like it's dripping after theres no more water in the sink to run out. Can you suggest a reason and cure ? thanks Frank |
#5
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frankg wrote:
solution : by adding a mechanical vent just downsrtream of the trap. since it's all glued ABS , how do you add a "mechanical vent" - is that a piece you buy and attach to the ABS ? Have to cut a section of ABS out and insert a San TEE with the Mech vent sticking up. Jim I moved our kitchen sink and of course had to redo the abs trap and drain connection. Everything works ok but I'm curious why the drain seems to gurgle (for lack of a better descriptive word) after the water has run out. And it also sounds like it's dripping after theres no more water in the sink to run out. Can you suggest a reason and cure ? thanks Frank |
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