so i turned the breaker off and took off the door front again. i turned the drain pump till it came off and pressed it back in and turned it until it was snug. i felt around it and it seems to be fitted back solid. it doesn't rock or anything.
i felt around under the washer trying to find where the source of the leak might be. the "white hose plugged into the sump" that you refer to is i assume the short-ish hose running around in front of the drain pump; it looks like it's plugged into the underneath part of the filter area (sump?). there didn't seem to be any water leaking around the connections.
the entire underneath of the washer -- the plastic bottom tray sort of thing(s) is filled with water. i took towels and sopped up a lot; the places aren't full of water now, maybe damp here and there.
i wish i'd not put everything back together before i dumped the water in and ran it. i could have looked under there while it was running and might have seen the water pouring out of somewhere (or maybe not).
i know there's still water on the kitchen floor under the washer and under the refrigerator and i want to get that up so it doesn't find a way to get underneath the linoleum and into the subfloor. i got some of the water up, but as you know both of the appliances are too close to the floor to get a towel under there.
i'm baffled as to where all that water poured out.
what are the "screws from the water valve?" where are they located?