Living in a town that has drain problems I was constantly getting some kind of drain cleaner to clear the sink and bathtub drains. Or when it was horrible calling a drain guy. That’s all I knew and this can be costly.
Then someone showed me how to use a plunger to clear the sink and tub! It’s not just for the toilet! It worked! If you have an old style sink like I do make sure you put a cloth in it or you will get ugly backsplash.
On our local forums, I read some people use Kleer Drain. I bought one but didn’t do anything. But pushing a plunger a couple of time clears the clogged drain. I have to do it every couple of weeks. It’s great not to have to buy one more thing to take care of my house.