[Aquelarrefox]

Originally Posted by Hebe Vollmaus

It looks this theme is not that simple.
There was compressed air and compressed oxygen.
Stiebler (not Steibler) was done before:

"Oxygen in U-boat - U-boat Officer's Reply"
https://www.subsim.com/radioroom/sho...d.php?t=185993

"Air supply in H.sie mod – New Options Selector 1.6C"
https://www.subsim.com/radioroom/sho...d.php?t=236848

Greetings.

Compressed oxygen is a patch add-on, it affect diving rib time. Compressed air should work in load and unload ballast in tanks in normal operation not only when you realise ballast.