how do I check for clogs in the vent for my kitchen sink?

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Peter

Member
My double basin kitchen sink drains very well when the garbage disposal is running. However when you turn of the GD and let the water run on for a few seconds the disposal does not completely drain. It's not so bad that it backs up, but there is definately standing water in the disposal unit. If I flip the disposal for just a second or two it drains completely.
I'm a bit stymied as I'm pretty sure that I installed it all correctly. Any help is GREATLY appreciated!
Thanks
Peter Goose
 
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bow2hook

New member
If you had a clogged vent it would cause the water in the trap to be vacuum out and cause the sewer gas to come up through piping. I don't feel you have a vent problem. I believe you have a clog as the disposal is acting like a pump when on an forcing water down drain. Hope this helps.
 
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Kevin

Active member
check and see if your cross over tube is level or even a little bit slanted towards the side with p trap down hill ofcourse , also where the cross over tube meets the other side of the sink by the p trap the t connector has a divider inside the t at that point, take it off there and check for a clog. your vent is best checked from the roof running a snake down it, the old cast pipe needs snaked when it starts going bad especialy if it has been vacant for a while
 
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