93 hatch civic washer tank removal
 

Just out of curiosity, is it really necessary to remove the bumper to change
the tank. I don't want to mess around a bumper where the screws are badly
rusted.
I have a leak somewhere either the with tank itself or the pump or tubes. If
was to be just the pump or tubes, can I get to it from under the car. I read
the manual, page 23-251 for those who have it but it's very general info.
There is a plastic protector like thing to prevent mud and road stuff to
enter the engine bay so I presume that if I remove that I would see the
tank. Am I right.

Or should I let a pro do it for me.
http://img512.imageshack.us/img512/5798/untitled0hz.jpg

thanks all