I am a professional plumber and drain cleaner. I received a call from a customer who had a problem with their shower. They said that the water was not draining properly and that the shower was backing up. I arrived at the customer's home and inspected the shower. I found that the shower drain was clogged with hair and debris. I used a plunger to try to clear the clog, but it was not successful. I then used a drain snake to clear the clog. After clearing the clog, the shower was draining properly. The customer was very happy with the service and thanked me for my help.