My boyfriend’s bathroom sink drains slowly. I was tired of the toothpaste marks left behind after the drain would finally empty. So I decided to try a solution I found on the internet. It was so simple and it proved effective.
*** Bring 1 Quart of water to a boil (4 cups). Pour 1/2 a cup of salt down the drain and rinse it down there with the 1 quart of boiling water. The water does not have to be a rapid boil for this to work. **
I hope this works for you too!