so i have the hot and cold water lines running through my kitchen flooring to supply the sink faucet, dishwasher and fridge. i'm in the middle of renovations and it only has the following arrangement:
-hot water pex line is simply capped
-cold water pex line comes out through the bottom of the sink cabinet. there is a Tee that branches to the fridge. there is a valve on the line to the fridge. downstream of the Tee it's capped.

now, was the plumber supposed to put a valve upstream of that Tee on the water supply line? i plan on adding another valve, of course, downstream of the Tee to be able to isolate the water to the faucet.

 

I would suspect, that you have a valve in your basement to control water for everything you mentioned above. If you need to open up the line to add/change anything, should be easy enough to do after isolating that line from the basement.

 

Funny. I've been reading up on pex lines, and how they work. Pex seems to me to be very adaptable. Adding service from an existing feed is as easy as adding a "T". There are a couple different ways to run them (pex tubing). The October issue of "Handyman" has an article on plumbing with pex. Maybe you can find it at your local bookstore or home repair center and check it out. Might be worth the $2/$3 for the OTC cost.

 

i just found out that, apparently, the setup i have is ok. it's not common to have a root valve with tees downstream with their own valves.

 

This must have been a fun.