Hi,

Everything Art says is true!
It's like when a bird got friendly on a fellow cross country runner, when next to Forrest Gump and he said, "S*** Happens."

I like using my modified reservoir cap and my air compressor with the regulator turned way down under ten PSI. It only shows a zero to ten. So about five PSI will suffice.
A Mighty Vac pump doesn't pump itself, so it requires a helper who regulates! Like my wife! I don't care for that out in my shop! We have an understanding between worlds and if I had kids, they would probably have cleared to the woods! I'll never know?

Art's idea of adding a zip tie around the reservoir, I never thought of. I hate to waste a cheap wire tie but a bungee cord that can hold calipers up will work fine, don't you think?
That reservoir is only stuffed into place and held by rubber "o"rings.

I also didn't realize about the hassle of getting up to check it. I have a car lift so it's a walk around to a ladder and three steps up for a peek.
When it needs more I disconnect the coupler from the cap and the pressure is gone. Refill and reconnect. I get a couple or three bleeds between sets. Almost all the time, I'm just flushing looking for clearer fluid.
I have found out not to open the bleeders very far, as the threads on the bleeder can let air suck in as the fluid goes by and give you the idea that there is air in the system. The threaded body can get loose fast. A half turn is usually enough.

I didn't invest in a bleeder like those because they are too big, IMHO.
I think they were designed for brake shops with many customers, you hope!
It holds a lot of fluid if filled completely and that will get exposed to a lot of air! If not completely full or kept full between uses, You, will have to empty it completely after each use from what I have seen. That means back into a narrow neck fluid bottle.
The setup I have uses a minimum quantity and is as needed dispensing.
That's more important to me.

Also, My modified brake cap fits in a drawer, so easily, I can misplace it! (:)
Nothing like a good hunt to start your day out!
I have gotten better though, now I treat it as a peanut butter jar!
A certain place for it like the crackers or the piece of clear bleeding hose.
Being organized in two places is a modern day challenge!
(:)

Phil