Each of us has encountered unexpected plumbing problems at least once, whether at home or at work. Water starts to drain slowly in the bathroom, or a faucet suddenly starts to drip, even at night when everything around is quiet. And sometimes it gets worse—a pipe bursts, flooding the neighbors, or the toilet suddenly stops working. It seems like a trifle, but it is precisely such breakdowns that can ruin your mood, plans, and even your working day. Who knows how to deal with this?