coupling

Hi Everyone. I have an offset coupling that is installed in a 4" waste pipe and it is starting to leak. I can't seem to find a similar (offset) coupling in stores, so I wanted to turn to this community for advice. The coupling is 3.75" long and has about a 2" offset between the two pipes. The...

My preasure reducer appears to be glued in and not screwed in for easy replacement (like I have seen in several videos). Any advice on removing and replacing this?

I live in Chandler, Az with very hot summers. My house is 6.5 years old and in the past 6 months I've had two very slow leaks cause ceiling damage. In both cases, it seems like there is hard water sediment on a hot water Pex line near a manifold. I had a few plumbers comment on the color of...