Thank you. Simple genious
Thank you for posting this simple solution. I tried it and it worked perfectly on the second try. ON my first try, I wound the string to pull in the wrong direction. Otherwise it was one pull and done. It was so refreshing to get something to work this well during a cooling system rebuild where I received a dented radiator in a perfect box, broke a thermostat bolt using a torque wrench, dropped the PS reservoir nut into the abyss, and discovered a crack in the bleeder vent after all was installed. Oh yeah, my work was interrupted by rain 3 times.
I can't wait to pass this trick on as mine.