Loseing vaccum in chamber

[Hiflt4@juno.com]

I have 2 pressue pots a small harbor freight one, and a larger.
On the small pot im running a 10cfm vacuum with a max pull of 15 microns.
When connected to the gauge i am able to pull 28.2 inhg the maximum for my elevation.
However hooked up to the pot i am only makeing it to 26.5
I water tested it when pressurised found some leaks so I removed the fittings and applied teflon paste and re tested with no bubbles visable.
it reaches 25 in about 20 seconds and over the course of 1m gets to 26.2 but even after 5 min of running, i do not see any improvent.

Any suggestions?

[Lane]

Probably a leak in your vacuum line fittings.

I'm having about the same problem with my vacuum chamber after disassembling and moving it.

[mangozac]

You could try ...

[blind pig]

or your gauge is out?

[Hiflt4@juno.com]

I doubt the gaudge is out I used the same one to test the pump on the line fitting, ill try the loctite thx.