I had this problem when I used Tabac for a prolonged period. None of my other soaps do it.
But I bet it smelled great!I snaked out my sink today. Appalling. Unspeakable.
I had little long term luck with any of the liquids, but some Red Devil (powdered lye) did the job. It was especially effective when I let it work for 90 minutes rather than the specified thirty. Effective and cheap.
Ha!! Was trying to remember the name of that Zip-it thing when I saw your post. I highly recommend it. Works wonders!I suspect for the most part some soap isn't going to clog a 1.5 inch pipe unless there is another problem going on.
We have two sinks in our bathroom, one is mine and the other my wife's. I'll let you guess which sink I have to remove the p-trap under the sink every six months and pull out enough hair for it to resemble a small animal. Once I do this the sink drains perfectly again.
A friend of mine bought one of these http://www.homedepot.com/p/Zip-It-B...Z3bbn43i0j0Gc4DlQ02h4aAveq8P8HAQ&gclsrc=aw.ds and he swears by it. It removes the hair from the drain without having to take everything apart under the sink. For the $2.48 I'll pick one up and give it a try next time I have a slow draining sink. Which I suspect shouldn't be too long from now.
Ha!! Was trying to remember the name of that Zip-it thing when I saw your post. I highly recommend it. Works wonders!