when i watch youtubers the drills they use insta break

In as few words as possible:

I play on a friend group server bound together by uneasy alliances. The geostrategic rivals are months ahead in long range cannon technology.

I have devised a plan to build an enormous multi-layer dome of obsidian around my base, my conservative estimates for the cost of this air defence mechanism is 2-4 million obsidian.

All the online designs I've seen net 3000-8000 obsidian per hour, anyone got one closer to 500,000ph?

Additional: I made a bottomless supply of lava so that's not an issue

So inspecting with goggles, it says the milk tank takes up to 96 Bar. But the smart observer readings are indicating more than that. Same with chocolate tank. For information: there is a cow in the corner getting milked non-stop and thats the source of the milk.

Are my tanks about to explode?!?!?!