SSSSLLLOOOWWWWW Bathroom Drain..
 

Looking for some suggestions for a slow bathroom drain. It's been doing it for awhile. I've checked the P-Trap and its clear. This is a sink that the vent is under the sink. I've also used the Liquid Plumber Foaming Dain cleaner, we used to use that at our old home.... I have another drain with the same vent pipe configuration and that works just fine.

Thanks

Only thing I can think of is a wad of hair or other material caught on the drain plug mechanism though the liquid plumber *should* have taken care of that.

I have a few suggestions:

1. Remove the nut that holds in the drain plug mechanism under the sink and pull out the drain plug rod.
2. Use a plunger. They make a special small plunger for sinks. They also make a super duper plunger that uses some type of compressed air or gas.
3. Remove the vent mechanism.
4. Remove the P-trap and use a drain snake.

A drain snake works better than any drain cleaner. If someone you know has one or hire a plumber.

I think it is hair mixed with soap. Try this hair snare:

25 Inch Sink Snake Drain Clog Remover Tool,6 Pack Drain Cleaner Hair Clog Remover Tool, Drain Hair Remover Plumbers Snake, Drain Cleaner Sticks, Easy and Quick Unclog Sink Drain, Kitchen, Shower, tub. https://a.co/d/jbTTZjL

These look awesome! Gpa Vader, if you try these things, please let us know how it went.

i use boiling hot water about 1/2 gal.

Dollar tree has them. Works well

1/2 fill the sink with water cover the overflow outlet at the top of the sink with a wash cloth and use the plunger repeatedly and you will see stuff come out that was caking up for years. Keep the water running try to take out the large chucks that get dislodged.Reat this process until you have a clear drain. Do it once month and you'll never have a slow drain again.

drain
 

I once took a slow drain apart from the bottom and my wife had dropped a piece of dental floss in there and there was stuff hanging all over it.take it apart...clean as you go

when using liquid plumber, to flush, I boil water and then pour it down the drain. Plain hot water doesn't do it

Yeah Yeah....When it doubt....always blame in on the wife! Now let her read your post! ;)

Note that PVC pipes are only rated up to 140 degrees F, but boiling water can be as high as 212 degrees. It can deform the pipe and/or melt the glue. Pouring boiling water down a clogged pipe can increase the chance for damaging the pipe.

Can you replace the vent itself ? That may be the issue.

I believe that ACE carries them ….

I agree. But, if you can just remove the vent device, you will see immediately if that is causing the problem.