One other thing you might consider - I did this in an apartment once in the shower/tub. I unscrewed the tub spigot connector and went straight to the pipe, but, something else I did was to add in-line a volume control (made for garden hose), so I could adjust the volume so that it was just enough to overrun in the washer, but no more, to conserve water. And every time I set up and took down, I left the valve set the same way, so I never had to adjust the volume again, just turn on the water full and the valve controlled the volume.