I'm nowhere near doing my brakes yet but this is my procedure for replacing fluid. I use a Gunsons easi blead and it never fails. First off I drain the old fluid using the easi bleed to force the fluid out starting with the wheel furthest from the master cylinder the doing the others finishing with the closest to the mc.
To refill, connect a hose to the nipple of the furthest wheel cylinder and put the other end into a jar or jug. Fill the easi bleed with clean fluid and pressurise. The fluid will rapidly be transferred into the system, as required top up the easi bleed. When fluid runs clear from the hose without too many bubbles close the nipple and move to the next nearest wheel and repeat.
Once you have done all wheels go back to the first one and go again. If the pedal isn't good then I usually leave it half an hour with te pressure off and then bleed the traditional way with an assistant pressing the pedal. Its never failed me yet.
D.
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