Fixed it, kind of. It seemed to be stuck up for some reason. Once I got onto the force and hit the button it went down. It was kind of sticking at first, but after going up and down a few times, it started going back down on its own just fine.
With the weight of 4 lead acid batteries and yet it wouldn't drop on its own seems strange. So the valve was clicking open and working just fine, it was just stuck up.
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