Had a leak in a Pex A pipe and it ruined the room. So we fixed it and it’s hold ok. The exposed portion of the room is in a bedroom and the pex goes into the master bath on the opposite side. Under the sink there were the push pull cheap angle stops. Replaced the one on the cold and said may as well do both. The red pex was a bit tighter and shorter, had to make a cut and it ended up leaking when I turned it back on. I’m using a manual expansion tool and it’s too big to get into the other areas where the red pex is before it goes into the slab. I’m pretty worn out on it with all the issues even finding the leak in the room. About ready to just call a plumber. I don’t have any straight fittings and I’m not sure I could even get the expansion tool in there.