Question- “When a toilet is flushed, I hear a gurgling sound as if it is flushing again in another toilet on the opposite side of the house. Is this a normal physical phenomenon, or a problem with the water table or plumbing? This just started a month ago.”
Answer- In our opinion the gurgling sound is one of two things.
1) If you are on city sewer then it could be a clogged main line.
2) If you have a septic tank then your septic tank may be full.