Or obtain the following:
One Motive Power Bleeder, which can be found here:
http://www.pelicanparts.com/cgi-bin/autocat/load_page.cgi?page_number=1&bookmark=3&model=911E&currsection=brakes
One can ATE Blue brake fluid.
Using the power bleeder (and once you have one you will never go back to bleeding the brakes any other way) push the new blue fluid thru each brake line until you see the blue fluid come out each wheel cylinder. That way you know you have flushed all the old fluid out of the system.