Thank you for the quick reply and the explanation.
I expected it to work the same way than regular ore patches, especially as the option is presented and selectable. But just connecting all pumpjacks works fine, too

Given a pumpjack with the following circuit settings:
grafik.png

And this current states:
grafik.png
grafik.png

Expected: a signal of around 1.9M Lithium brine on an attached programmable speaker.

Actual: the remaining Lithium brine of the actual "mining drill", not the entire patch ...

Argh, I hate it when computers are new and bring "nice hotkeys" for grafic functions with them. "Alt+L" was an AMD hotkey for "Anti Lag" (whatever that means) and triggers that sound, so it has nothing to do with Factorio.

Sorry for my not-a-bug report guys. I really thought that you built a nice ...

Ehm, well, yes, I used mods. But even after disabling them all (including game restart), the sound does still exist. BUT not the first few times when using Alt+L, but finally after some switchings from within the "personal logistic" GUI (and then every time I press Alt+L, with or without GUI ...

When (de)activating personal logistic with a keyboard shortcut (default seems to be Alt+L for me), you get a different sound depending on activation or deactivation. The used sound gets wrong when you enable or disable personal logistics once in the GUI via the "on/off" radio button.

I would ...