Clearing blocked filters and clogged valves is the order of the day. //

SpaceX is targeting June 5 for the next flight of its massive Starship rocket, the company said Friday.

The highly anticipated test flight— the fourth in a program to bring Starship to operational readiness and make progress toward its eventual reuse—will seek to demonstrate the ability of the Super Heavy first stage to make a soft landing in the Gulf of Mexico and for the Starship upper stage to make a controlled reentry through Earth's atmosphere before it falls into the Indian Ocean. //

Glorified Desktop Support Ars Praetorian
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jhodge said:

Valves are the devil's own devices, aren't they?

I'm very curious about the clogged filters

I'm going to guess air. Tanks aren't a vacuum when the LOX is pumped in (although they are perhaps flushed with an inert gas). Dry ice is warmer than LOX. There might be other avenues where air enters the system, and then you have dry ice slush that could clog filters.