I am hoping that someone can offer a suggestion to solve my problem. We recently purchased an 8 year old townhouse. We have a double vanity (2 sinks), a toilet, a free standing shower, and a jacuzzi in our master bath.

I have a two fold problem which I believe are related. The toilet last week started to flush very slowly, which eventually led it to not flushing at all. So, I removed all the water (using gloves, etc - not fun) and using a plunger got the toilet to flush slowly. So now it fills the bowl and than slowly empties. I bought an auger (3 foot) and did that a few times, as well as buying Drano Professional Prevention and have done that a few days in a row per instructions. I also bought this professional strength powder that has enzymes and did that for 3 days. All of this based on Home Depot's recommendations. I've also filled the bowl, flushing it with hot water, and the flushing did improve a bit, but not completely.

I also noticed that the sink closest to the toilet drains completely fine until the water has run for about 5 minutes and then all of a sudden it starts to back up and then drains very slowly. So I also plunged it (different plunger), used drano, and hot water flushes, but it still does the slow drain after 5 minutes.

The other sink, shower, and jacuzzi I should mention have no issues at all. I would've thought at least the other sink would have a slow drain problem, but that is not the case.


So I assume the toilet and sink share the drain somewhere and this is related. Am I correct to assume there is a partial blockage somewhere down the line or could this be a venting problem? How do I determine if it is a venting problem.

The master bath is on the 2nd floor, and the basement is finished and we are on city sewer.

My next step is to call a plumber, but was hoping I could get some suggestions.

Thank you

You have clogged drain, snake it from the roof vent, rod enough to reach from the roof to the basement floor plus 20 feet extra, good luck.

John

Thanks for the suggestion John - unfortunately we have a 3rd story loft, and there is no way I can get to the roof - safely. Looks like its time to call a plumber.

With it being on the 2nd floor and the 1st floor OK, and the other fixtures near it OK, it will likely be that the toilet is wet vented by the sink. So you can pull the toilet and snake from the flange down the drain and you should be able to clear the blockage easy enough. You can also run the sink while the toilet is off to keep water visible in the flange ( just don't let the water get too high or it will flood on the floor ).