I remember being single and having blocked drains. Not a great thing. One Saturday night I got a blockage under my bathroom floor while cleaning the bathtub drains. Obviously a clot with hair or something got stuck somewhere in the drains. I was standing in water, wondering what to do and who I could call on a Saturday night. Then I remembered something that I had learned earlier at my job at a youth hostel. I found a plug, pulled it and stuck the hose in there and started flushing the drains with water. First nothing happened but suddenly something gave way and out it all went.