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knotquiteawake 06-15-2012 03:14 PM

Slow drain fast drain
 
My bathroom sink, a vessel sink, drains really slowly at first and then after about 2-3 inches of water builds up suddenly starts draining really fast, almost making a sucking noise. Then it looks like the water only drains down as far as the bottom of the sink instead of further down.

Whats going on?
I can post a video of it later if an example is needed.

VIPlumber 06-15-2012 10:28 PM

A vid would be helpful.

TarheelTerp 06-16-2012 07:57 AM

Quote:

Originally Posted by knotquiteawake (Post 944102)
My bathroom sink, a vessel sink, drains really slowly at first...

Is this a new issue or has it always been like this?

Quote:

Whats going on?
http://www.youtube.com/watch?v=f39Zs0gB87c

knotquiteawake 06-16-2012 11:28 AM

its been like this since we moved in a couple months ago. The sink is new; part of a remodel done before we moved in.

Here is a video of it in action.
The sink starts to back up, draining very slowly, and then at some critical mass or something suddenly rapidly drains and then starts to backup again. Rinse and repeat...
http://youtu.be/nue-_TiO0Qo

TheEplumber 06-16-2012 12:41 PM

Quote:

Originally Posted by knotquiteawake (Post 944819)
its been like this since we moved in a couple months ago. The sink is new; part of a remodel done before we moved in.

Here is a video of it in action.
The sink starts to back up, draining very slowly, and then at some critical mass or something suddenly rapidly drains and then starts to backup again. Rinse and repeat...
http://youtu.be/nue-_TiO0Qo

Do me a favor would ya? stick a drinking straw in the strainer an inch or so. Does it drain better?

knotquiteawake 06-16-2012 01:10 PM

Quote:

Originally Posted by TheEplumber (Post 944871)
Do me a favor would ya? stick a drinking straw in the strainer an inch or so. Does it drain better?

not at one inch but after wiggling the straw about 2.5 inches down it drained like I would expect a normal sink to.

TheEplumber 06-16-2012 01:47 PM

Quote:

Originally Posted by knotquiteawake (Post 944885)
not at one inch but after wiggling the straw about 2.5 inches down it drained like I would expect a normal sink to.

This problem is not uncommon with grid strainers. One remedy is to replace the strainer with a larger hole pattern or a popup model. Others have had success drilling the existing holes larger

VIPlumber 06-16-2012 05:08 PM

I agree with Eplumber, replace the strainer. Looks like this one takes longer than expected to allow the water break through the holes.


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