Hello Mr. Tore,
I was thinking again... This setup looked like the Blowing Manifold for the ballast tanks; where there are 2 HP input lines with manually adjustable pressure valves. A primary and a backup line in case the primary line freezes. They reduce the HP pressure and use the individual blowing (on/off) valves for blowing the ballast tanks. This setup looked exactly like the Q tank setup; where you could set the blowing pressure with the manually adjustable pressure valve and then use the on/off valve to blow the Q tanks. That way you would not need to set the pressure each time you blow the Q tanks.
However, you are the expert and I am just the student who continues to ask many questions to learn about the U-Boat. I don't believe I will ever be at the point where I don't have questions??? Thank you for the quick response...
I have just uploaded to dropbox the latest version of Skizzenbuch.
Updated pages:
90 - 91 Junkers
98 - 101 Bow and Stern Buoyancy Tanks
189 - 191 Blowing Manifold
212 - 213 Oxygen
348 Corrected U-995 Info
349 - 350 Listening Devices - GHG, Balkon, KDB, and UT
359 added external views of Bold
Regards,
Don_