It's a very serious problem. Your water system from your house has been damaged. I remember that I had the same story, but the problem was with the old pipes that were installed. Maybe you need to change the pipes or something else. In this question, I was helped by the guys from WILCO PLUMBING. They are the best team of plumbers from Sydney. They helped me to solve the problem with some old pipes from my house. They worked very fast and quietly. They have done a very good job, and I am pleased with it.