Star formation driven outflows play an important role regulating the gas supply of galaxies. However, we still need a consensus on the details of this feedback process, particularly in starbursting environments. I will present results from the DUVET sample of local starbursting galaxies observed using the IFU KCWI. We measure ionised gas outflows in 10 face-on galaxies with ~1000 individual measurements at 500pc resolution. Using our observations (1) we can discriminate between widely used models of the outflow launching mechanism. (2) We derive much-needed scaling relations for the relationship between star formation and outflow properties across a range of star-forming environments and compare these to simulations. (3) We connect the outflow with location in the resolved Kennicutt-Schmidt relation and find that starburst regions remove more gas via the outflow than they convert into stars. This directly measures how outflows regulate star formation and may contribute to quenching. (4) Finally, we develop a new non-parametric method to measure outflows in emission lines. We map the mass of outflowing gas reaching velocities high enough to leave the galaxy and compare this to gas which likely remains within galaxy fountains. DUVET's resolved outflow observations provide a new perspective to make ground-breaking constraints on how stellar feedback regulates star formation.