Sewer backflow preventers are an essential part of your home's plumbing. Here's why you need one and how to test if yours is ...

Timothy has written about personal finance, including detailed home renovation and repair cost guides ... USA Today and The Pen... Backflow preventer installation costs between $105 and $1,400 ...

“The plumber said that the builder did not install our backflow valve properly and pieces were broken off. There is no way that our back flow valve would pass inspection. To replace it will cost ...