Formula One’s pit crews are some of . There are so many people, all working with millimeter precision to get a set of tires off a car and a new set on in give or take two seconds. And here’s a crew member I’ve never seen before: valve person.

F1 cars currently use pneumatic valves, a tech that is kind of sort of filtering into the world of ordinary road cars. The valves themselves are pneumatically actuated, not with metal springs.

Apparently this system needs recharging, as F1 tech guru spotted at the season opener in Australia over the weekend:

Scarbs explained why you see this when :

You often see the teams suffer a loss of pressure in the races through leaks in the system, the driver comes in and mechanics re-pressurises the pneumatic circuit, this rarely works for more than few laps. 

This is just another little example of how complex modern F1 cars are. Man, I love these things.