Hmm I'm not sure if it's the BS, but if it is, just pour some white vinegar down the drain. I do that to clean my drains in the kitchen all the time. The fizzing seems to help them, and the acid neutralizes the base (BS).
I have waist-long hair though so my drains are always getting clogged with hair. I'm not sure if there's a more natural way to unclog if that's the real problem.
I have waist-long hair though so my drains are always getting clogged with hair. I'm not sure if there's a more natural way to unclog if that's the real problem.