You may have hair in your drain. I have two daughters and this happens often. I bought this tool and it works like a charm and it is cheap. https://amzn.to/2RTFaSo
I went to the dollar store and they have a long plastic hair remover tool. It looks like a long plastic strip with barbs on it so it will catch the hair. I do this monthly to keep my drains clean.
First use a dollar store drain cleaner to pull all of the hair out of the drain. Pour liquid plumber down it to release the rest of the junk so it runs free.
Three years ago, I had one of my bathrooms completely gutted and remodeled. I am having problems with some of the grout around the tiles on the shower walls cracking ...
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You may have hair in your drain. I have two daughters and this happens often. I bought this tool and it works like a charm and it is cheap. https://amzn.to/2RTFaSo
I went to the dollar store and they have a long plastic hair remover tool. It looks like a long plastic strip with barbs on it so it will catch the hair. I do this monthly to keep my drains clean.
First use a dollar store drain cleaner to pull all of the hair out of the drain. Pour liquid plumber down it to release the rest of the junk so it runs free.