We use this thing (closest ref from Ebay) available from Super Cheap, Repco, Autobahn
Great for pulling old fluid and air through for fresh -- its a one man job and the pedal feel seems to be superior to the two man effort of push the pedal and crack the nipple type.
Plug this device to your compessed air source attach the bleed hose to the nipple - pull the trigger and crack the nipple open --watch the fluid and air into the container bowl until continuous -close nipple and move to the next one --job done --do the longest lines first and keep the reservoir full
Vacuum Brake Bleeder OTC8104 Brand NEW | eBay
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