I want to make sure I do some pllumbing 'right'. To me, I feel sweated connections are the most reliable and durable. As much as I feel I'm applying too much heat / they take too long to do, But there's compression fittings, sharkbite and others? Sharkbite (if not others) have rubber o rings, right? While yes, MUCH easier to connect (and disassemble if need be), the rubber could over time deteriorate? Maybe not 5 or 10 years, but why not do it 'right' if it's something that isn't going to change over the life of the house? Are sharkbites rated for inside the wall? Can anyone tell me what type of connections are in this picture? Is that a compression that a plumber does with a special tool vs. the compression I think of with the ferule and compression nut? If that's a different type of connection, what do you think of that? tool too expensive for homeowner? If a plumber was doing work in your house would you be comfortable with this type of connection vs. sweating? Or your other 'gold standard' method?

Hello everyone! Newbie homeowner trying to understand the pipes through the attic/roof. There is one pipe that I know is for the bathroom but that pipe doesn't go through the roof- it only escapes through the attic. Is this harmful? Also would love to know what type of vents are best, some have chemicals in them and I don't want it to be harmful overtime.