I don't know if they're PEX or some other brand--?
These fittings in the pics are the main lines to/from the water heater. My problem area is at the water tank fill area, which I can't get to at the moment, but it's the same stuff. Somehow the 'tank fill/city water' diverter valve, and/or the plumbing connected to it, froze and split (I'm guessing). Just found this out over the weekend. With the valve in 'city water' position the water pump pushes water out of the valve, or pipes (couldn't tell which), and with the valve in the 'tank' position, the leaking stops, but the pump sucks air. City water connected just plain leaks...
Anyway, fixing the problem should be easy enough but I'm not sure what tools I'm going to need, and I'm not sure how to go about removing the old pipe short of sawing thru the black crimping. Is there some sort of metal sleeve under the black crimping?
I have some PEX tools, but they won't work on this stuff!
Thanks in advance!