To be honest, I’m getting tempted to just leave it all as it is, and just add in another 1/4 tee above the current 1/4 tee for the fridge and leave it all be. At the end of the day, my initial question was just “can I add a Tee on top of the Tee” and I got my answer which was a yes lol

At the end of the day, if the pipe coming out of the wall snaps, there doesn’t seem be anyway to solve the issue other than taking that pipe off. Which can then cause the pipe in the wall to snap off and cause a bigger headache. Worse, it’s possible that when I try to take off the valve, the piping in the wall is galvanized pipe and that snaps off in the wall. I don’t really have the thousands of dollars it would cost to hire a plumber to fix that issue. Given how I don’t know if the pipe in the wall is an old rusted and corroded galvanized pipe that could snap in an instant when I try to remove the old valve, I feel as though this is just to risky for me.

I don’t know. What do you think? Do you think it’s really a small risk? I’m just scared the pipe behind the wall might be an old and corroded galvanized pipe that can burst and cause me issues. Even if the pipe coming out of the wall bursts, I don’t know if using that shark bite is the best idea since it’s “technically“ not made for brass but PVC. And I assume I’d have to remove the pipe to rethread it. So this whole job just seems very risky and I just don’t know if it’s worth. If something breaks, it doesn’t seem like I could permanently fix it without calling in a plumber and spending $1000+. I’m from NY so it’s really expensive here.

You have any thoughts? You think it’s low risk and I could do it? If something breaks, you have any other suggestions in case the shark bite fitting doesn’t work on the brass?