To finish, re-install the pump (old, if working, or new) in to your washer bottle (old, if good, or new, and possibly with new rubber grommet).

Then simply re-insert the bottle in to the retaining bracket.

On this car the pump worked fine, and the washer bottle and grommet were both OK. The bottle was simply very dirty and filled with really old, gross washer fluid. The bottle was simply removed, emptied, and cleaned and then refilled with a mix of water, isopropyl alcohol for freeze-prevention, and a few drops of dish soap.