I am helping the in-laws remove their countertops and disconnect their kitchen sink in preparation for new countertops and a new sink. The only wrinkle is that the existing sink does not appear to have shut-off valves. I am guessing the plumbing was just installed that way - it's PEX plumbing, original I think, in a 1998 house.
They don't want to shut off the water for the whole house for 2 days while they wait for the countertop installers, so I had an idea to add shutoff valves (sharkbites) to the existing PEX supply pipes, close the valves, and just remove the sink. So basically, the pipes would terminate at the closed shut-off valves, and the house water supply would stay on. This is only a temporary measure (for 2 days) until the new countertops and sink are installed.
Is this OK or am I risking causing a water leak?
I have successfully tried this approach at my house (with copper pipes), but I don't know if it's considered "good practice".