But as I proposed above, if the sink is on the wrong side, just install a tube line with some angles to the sink and fill there the bottles as if they were standing on the right side.
This is a good suggestion, but I am worried about carryover contamination as adding a tube will substantially increase the surface area shared by the liquids. Also, for color processing it will cool down the developer more, requiring longer warm-up in the bath for subsequent runs.