My home has polybutylene and as part of a kitchen sink replacement, I wanted to put new shutoff valves in. Lowe's sold me standard brass compression fittings (with the inserts) and they failed. I talked to a heating and plumbing contractor (who I THINK knows what he's talking about) that said that the compression fitting needs to be made for polyb specifically and that Lowe's has them. So, I go back to Lowe's and I can find no compression fitting made just for polyb. Now I'm confused. What confused me even more is that neither of the guides (the booklets that tell what fittings are used with what pipe) in the store said anything specifically about polyb. Other than using a crimp connection (along with a $100 tool that needs to be calibrated), which is the right type of fitting to use?

I want to put in a new bathroom in the basement. Older house with no rough in and the waste pipe is in the center of the house going down through 4" of concrete. I want to place the new toilet about 20 feet from the waste pipe. Is there any way to tell which way the waste pipe runs from the center of the basement without busting up the concrete around it? How about running a metal snake through the clean out and using a metal detector to find the snake if there is no rebar in the concrete. Hope someone knows a few tricks or it's jack hammer time for me. lol Thanks, Duke of ....