Hello people, In my basement there is a water line that goes to the outside of the house for the outside hose spigot. For some reason there are two shutoff valves on that line, and neither one works well...so I’d like to replace them. Please see the attached two photos, Is it just as simple as unscrewing the old one and replacing it, or do I have to cut pipes, etc? The blue shutoff valve looks like it really only unscrews from one spot (the red arrow in that picture). The black shutoff valve I can’t quite tell which spot it would unscrew from, marked by the three different arrows in the picture. Plus, aren’t new shut off valves the lever type instead of the twist knob type? Any help would be great! Thanks.

I am finishing my basement and decided to do the PEX piping myself. I tied into existing PEX pipe running in the floor trusses. I used a crimper and rings that I bought from Home Depot. It seemed to work well and is not leaking. My only question is with the go no-go gauge. My understanding is the gauge is supposed to fit partially over the ring but not all the way on. When I tried this on my rings it was perfect but only from one angle. From other angles it wouldn't go on hardly at all. It is like this on most of the rings. Should I be worried about this? Like I said, the joints are not leaking at all. If it is not acceptable, am I OK to re-crimp the rings? The manual of the manufacturer of the rings says it is fine but other forums I read said this was not OK. Thanks in advance for any advice.