Leaking toilets may exhibit the following signs:
Faucet Noises
Bubbling or groaning sounds coming from behind or beneath your toilet could indicate a plumbing leak.
Water on the Floor
Mysterious water puddles on the bathroom floor may indicate a plumbing problem.
Uneven Tile or Flooring
Uneven flooring or tile near your toilet could signify a slow leak.
Musty or Sewer Gas Smells
Extreme unpleasant odors, such as rotten or moldy smells or sewer gas odors, may indicate a plumbing issue.