Doing a pressure test with vacuum before our tank test and getting a drop from 10 to 8 in. Hg in about 10 mins.
From the guide it should be only about 9 in 15 mins.
How critical is the vacuum test in terms of the drop?
Check all the penatrators and bolts and all seem fine. Only thing we haven’t touched are the front end caps of the main & battery enclosures, they are as fitted from BR. Should we pull those and redo the silicone? Any other main items to recheck or comments?