Replace water valve in GE Potscrubber 900

Hi,
Does anyone have any instructions on how to replace the water valve (part #AP2039339) on a GE Potscrubber 900? Our dishwasher is very old but we can’t afford a new one at the moment. The water valve has a small hole that I’ve tried to fill and seal but have been unsuccessful. The part isn’t too expensive ($18), so I wanted to see how difficult replacing the valve is. I’m guessing the tub would need to be removed in order to get to the water valve because there’s not much room when removing the bottom panel.

Thanks in advance for any help!
Kevin

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