In the remote warehouse, heating pipes began to flow, I was sent to open the room and meet the sanitary technicians. The sanitary continuously mated for 15 minutes, not noticeably that they did anything, but the flow stopped. The most interesting thing is that the same pipes run regularly in the same places. On the way back, I realized that magic exists. Mat is like a spell, and a divorce key is like a magic stick in Harry Potter. He directs the key to the pipe, pronounces a long complex spell and the flow stops! And when the spell weakens (months after 5-6) - it flows again. And I am going to the remote warehouse again (((