I hear a leak in the walls when my daughter takes a shower. I tried to locate it by turning the shower on and running it but you can only hear it when she is in the shower. What could it be?
During the fall/winter, it is common for the hot water lines tend to expand (which may sound as if there is a leak somewhere). If you do still feel that there is a leak, you may want to purchase a cheap moisture reader to see if there is any dampness within the walls. Or you can contact a licensed plumber to confirm whether there is a leak somewhere. Good luck with your repair!