The answer to 'why is my carpet water damage' is that there are several common causes, including leaks, flooding, spills, and high humidity. Symptoms can include discoloration, musty odors, and visible water stains. Solutions depend on the severity, but may involve drying the carpet, treating mold/mildew, and potentially replacing the carpet if the damage is extensive.
It's important to address water damage promptly to prevent further issues like mold growth. For minor spills or leaks, you may be able to handle the cleanup yourself. But for larger-scale water damage, it's best to call in a professional carpet cleaning service to properly assess and restore the carpet.