Replacing Corroded Washing Machine Valve
Hi all --
I'm a do it yourselfer and would like to handle this project on my own if I can, and I'm trying to avoid ripping apart my wall (!) -- but have limited experience in plumbing.
The hose attached to my old washing machine's cold water shutoff valve had corroded so badly it was effectively fused to the valve's threading. When I tried to loosen it, half of the metal hose attachment simply sheered off -- which was even less helpful than an old leaking hose.
Now it seems I need to replace the entire cold water valve. I've attached a pic to help explain -- apologies for blurriness, but think it shows the situation clearly enough.
It appears from the threading at the back that I should be able to turn the entire valve and simply slide it out and replace it -- but that could just be my lack of experience misinterpreting what I'm seeing. When I tried to turn the valve, it turned, but I got the impression it wasn't turning where I expected it to and rather was simply mangling something, perhaps the pipe, behind the wall. The valve and water supply pipes could easily be 20 or 30 years old, and like everything else in this house, are likely outdated and substandard.
Looking at the pictures, does anyone have any advice on how to get the entire valve off without tearing into the wall? Is it even possible?