Ironically

I also have had a problem with a stopped up drain just like Keener. For a couple months I just put up with the slow draining water. I could see the sludge built up around the sink plug but could not get the plug out to clean it properly. I twisted, I pulled to no avail. The other day I got motivated enough to get down on my knees and look under the sink. Doing so revealed that I had to release the sink stop from underneath. After doing so I was able to clean it properly. Sink is good as new. A 5 minute effort was able to end a 2 month annoyance.