copper fittings

Hi, I just wanted to seek advice from seasoned plumbers working with copper. I'm wondering if a copper pipe is not "fully" inserted in the fitting, is it a huge issue? My fittings have 0.75" insert depth. This is for 3/4 copper pipe diameter. However, due to tube cutting errors, I have a case...

The backflow preventer has a crack so needs replacing. But I'm also considering re-doing the whole pipe assembly with copper pipes. It's a 1 inch 800M4 FR backflow preventer by watts.com. - Is replacing this with copper pipes a good idea? I know it'll cost more but it'd add to aesthetics of the...

Hello all! I'm brand new to the forum and a DIYer (at best). The best/closest info I could find on the web regarding a situation like mine was from y'all's forum - thanks. Info - location St. Louis House build date 1936 - plumbing update - unknown I went to put in a new vanity/sink and when...

We had our kitchen remodeled in our 1920s house a few years ago. As part of the remodel there was a copper pipe in a drop ceiling which was cut and fit through the ceiling joists. PEX pipe was used in the process to raise the pipe. I was not familiar with PEX until the plumber was done with the...