Yes, I made one out of a half gallon weed sprayer. Was refered to a web site with the How-To, which I no longer have but: You need a spare master cyl cap/cover drill out for a fitting to connect the hose from your pump sprayer, also drilled a hole in the top of the sprayer for a 20psi press gauge. Screw in your new filler cap and hose pump up to about 15 PSI, sprayer is about 1/3 full of new brake fluid, pump her up and then bleed away.
