Power pressure bleeder is super cake to use. it is basically a pump up weed sprayer with an attachment to a universal brake fluid reservoir cap. you put fluid in the weed sprayer, attach to master cylinder, pump up the weed sprayer, and crack the bleeders and watch the fluid flow. just dont over pressurize the sprayer thing or you will have a mess. dont fill your reservoir beyond 3/4 or you will have a mess. get one of these or make one on your own and you will never ask your buddy or significant other to help with bleeding your brakes again. center the proportioning valve with a good diagnostic scan tool like a snap-on solic or a GM Tech2. its a simple process that only requires you to start the process on the scan tool and press and release the brake pedal one or 2 times. really this can solve a lot of common 'old school' brake issues.