Diagnosing an upstairs plumbing leak can actually be a lot trickier than a lot of people may think. In fact, when I worked for Allstar Plumbing, one of the questions we asked every potential employee during the interview process was how to properly perform this diagnosis. Even when making the scenario fairly simple, almost everyone got it wrong. Here is the scenario that we gave:

“A home owner calls you out because they have a wet spot in their ceiling directly below the upstairs tub/shower. It’s getting worse over time. To make the scenario easier, we will eliminate the possibility of the leak coming from the toilet or lavatory sink. We will focus on the tub/shower combo.

. . . → Read More:

As always, if you find this article helpful, please feel free to donate and help keep this site alive.

Don't forget, you can also post your plumbing questions

in our Plumbing Forum!