First thing I would do is disconnect everything else and get it out of your way so you can get in there and work without being in a bind.

Two pair of channel-loc pliers, one pair on the valve body and one pair on the hose connector, hold the valve body tight so as not to twist it off, the channel-loc pliers on the hose connection will need to be held tight enough to grip the connector but not so tight as to pinch. Before you start to seriously get after it, you can selectively pinch the hose connector several times in different areas around the circumference to break the rust free and allow the connector to spin off.

I would turn the water off to your house before you try this, just in case.

This is how I would do it, good luck, wish I lived closer.


I have to disagree with the comments to use a basin wrench, places the hands to far apart and you will not get enough one handed leverage on the basin wrench to break it free.

Also disagree with the comments on the vise-grips, you cannot sufficiently control the power of the grip.