Contaminated brake fluid

[Mac]

I'm starting to get my boat ready for the upcoming season. A few years ago, I had thought someone took the cap and plug off my oil res. for my actuator (A-60?) So as I waited for the replacement to come, I dropped in a rubber stopper and put duct tape over it. After replacing I put the tape back over it. I would check my res about 3 times a season and would put new tape over it. My last check was in Aug. 07. Guess what? Someone took the caps and put the tape back over it.
Now I have to order parts AGAIN and I probably should replace the brake fluid. I have no clue as to how long it's been exposed or how much water got in it.

How do you suggest I drain the lines. compressed air? I know not to use anything but DOT 3 or 4 I'm hoping to attack this real soon (tomorrow) Until the new parts get here, I'll go get another plug from Ace hardware.

[CatFan]

The way I've been told to do a car is to first suction any fluid you can get out of the master cylinder with a turkey baster. Then pump as much fluid as you can through the bleeders with the pedal. Then fill the master cylinder with new fluid and flush through until what's coming out of the bleeders is clean. Refill the master cylinder. If you want to be really careful, let it set overnight so the new fluid absorbs any moisture in the system, then repeat the process.

[Mac]

There must be an easier way to purge the lines. I've bleed the lines before doing the pumping in the coupler (w/ pry bar or screwdriver) and that took some effort.
Looks like I know how my Sat is going to turn out!! Drain, pump, fill, repeat.

[CatFan]

Did you get it done?

[Mac]

I'm hoping to get it done tomorrow. Will update when finished.

[brnzbaklvr]

I have a kit for my Motorcycles that pumps the fluid from the brake cylinder to the master cylinder....I wonder how that would work???? I can't remember the name of the manufacturer, but they are very common..