Let the brake master go empty, what now?

I use them all the time successfully
To ea their own

If you have a decent air compressor, try the vacuum bleeder from Harbor Freight. It pulls a vacuum fast and bleeds a brake system very fast and with no mess. I have and was using a Motive pressure bleeder for awhile and now use my HF vacuum bleeder more than the pressure bleeder.
 
If you have a decent air compressor, try the vacuum bleeder from Harbor Freight. It pulls a vacuum fast and bleeds a brake system very fast. I have and was using a Motive pressure bleeder for awhile and now use my HF vacuum bleeder more than the pressure bleeder.

I have that one also, got it 8 or 9 years ago
Had zero problems with that one working as well

https://www.harborfreight.com/brake...677&adsetid=153815543677&product=92924&store=
Definitely a time saver and 1 man from the bleeder end
Just gotta be careful to keep fillin the master
 
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I have that one also, got it 8 or 9 years ago
Had zero problems with that one working as well

Definitely a time saver and 1 man from the bleeder end
Just gotta be careful to keep fillin the master

Yeah keeping an eye on the master cylinder to keep it filled is the only concern. It’s amazing how fast it bleeds the system and if you are changing the fluid, it’s extremely fast. I’ve bled brakes with a hand pump, with two people with one working the brake pedal, with a Motive pressure bleeder, and with the vacuum chamber powered by compressed air. I like the Motive pressure bleeder but now almost exclusively use the air powered vacuum bleeder. It’s so fast and mess free that I see no reason to do it any other way.
 
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