Gross things happen when a clog breaks free. It’s a good idea to step out of the way.
The drain line on my air conditioner was clogged. I called an air conditioner contractor, and he decided to clear it by blasting compressed air down the line from upstairs. My job was to wait outside at the end of the drain line to see if anything came out.
I stationed myself to watch, as instructed, but I didn’t stand back quite far enough. In an instant, I was showered with putrid water and debris! Shocked, I stood there unable to move—just long enough for him to send another blast of air, showering me again. Next time, I’ll be in charge of the air and someone else can wait outside!