our dishwasher is leaking. We have pulled it out from the wall & this is what we found. A tiny drip from the copper pipe to the right siden of the dishwasher inlet....AND the black rubber hose above (in a guide) drains into a cup....this hose was out of the cup and the cup on a slant. Is this black hose an important item and would this cause quite a big leak...as we have quitw a big leak. Thanks