Let’s look at an example. “John” had a clogged toilet. He decided to get a contraption from the local Home place that we are all aware of to rent a contraption that snaked down the toilet and the cable broke inside. Now he had a cable issue, so he decided to pull the toilet, and when he did, the seal cracked and he didn’t see it. He got the cable, repositioned the toilet and then had a leak.
Other people have a clog and just use a clog cleaner and that works. We are not saying every plumbing issue deserves a plumber to be called out if you are handy. The basic rule of thumb is if you don’t know exactly what you are doing, call a professional.