May be this info can help you:
http://www.at-hidraulic.eu/faq/
This is the article from specialized hydraulic center about Power Steering
that will not do any damge just syphon out what you can and refill with windshield washer fluid at least the fluid will not freeze in the washer lines,lol
What happens when you put windshield washer in the coolant in a Grand prix Pontiac
To get water for the windshield, you typically need to press the windshield washer control, which is usually a lever or button located on the steering wheel or the turn signal stalk. This action activates the windshield washer pump, sending washer fluid through the nozzles onto the windshield. Make sure the washer fluid reservoir is filled for it to work effectively.
drain all coolant then flush. refill with anti-freeze
There is a fuse for the windshield washer on the 1995 Geo Prizm. The fuse is located in the fuse box to the left of the steering wheel and under the dashboard.
Do not operate the washer. Remove the washer fluid reservoir and flush it with soap and water until all traces of antifreeze is gone.
pull the lever toward the steering wheel
Its between the battery and the windshield washer fluid container .
in the fuse box belowe the dash under the steering wheel
Nothing, just don't make a habit of it.
Begin by removing the hose from your windshield washer pump. Remove the windshield washer pump wiring harness. Remove the windshield washer pump retaining bolts. Reverse the process to install your new windshield washer pump.
Remove the wiring harness from the back of your Chevy Lumina windshield washer pump. Remove the windshield washer pump fluid hose. Remove the windshield washer pump retaining bolts. Reverse the process to install the new windshield washer pump.