What causes banging noise in walls after flushing toilet
I live in a condominium on the first floor. I noticed last night after flushing the toilet in the Condo's Master Bathroom, that it made lots of banging noises as if someone was outside hitting the walls with something. I initially thought it was outside the condo in the hallway, but after going in using the toilet on 2 occasions, and experiencing the same problem, I determined it was the toilet.
My room mate and I are not savvy when it comes to plumbing DIY, but wanted to at least gather some prelim information to narrow the problems down before calling in a professional.
Thank you in advance for your help.
"D"