Vaccum pump.
You remove the bleeder and put some thread sealer on it. Make sure the bleeder will seat okay and the hole is open.
Connect the vaccum plate to a mason jar. Run one hose to the vaccum pump and the other to the bleeder nipple. Pump out the air. Shut the bleeder when you see a steady stream of fluid.
Hope this helps.
BTW, Harbor freight tools has the vaccum pumps for $20.00. If you can go to a store, it is PN 92474.