If you get one, they come with a little plastic cup. I use a qt masion jar. I just put two snug holes in a canning jars lid. One hose thru to almost bottom of jar and that one goes on bleader. (Break bleader with 6 point socket and then light thumb pressure snug. Remove socket and put your box wrench on)

Other hose just thru lid about 1/4". Other end to pump. Add what you did out of master to bottom of jar for bubbler. Refill master.

Now pay attention here. Go slow never pulling over 5-8 lbs. When the lid clicks up, repump.

Bubbler mainly for bleading air. The reason you do not go over 5-8 is the cups in the master cup inward and create tremendous force. However, the other way if you pull with too much vacuum can actually pull air into system. Fill that tool box up. I have had my vacuum pump 50 years. Years ago there were all kinds of pots on cars that it has been on.

Reason you should not use master to pump it out is the piston never goes far when braking. However, if you break caliper and push master, the piston cup will go into crud and maybe a little corrosion and shortly, you master will leak.

 

Glad to see you got it figured out …