Handling fluids for rafting currently is complete unfun as buckets need to be eqipped in the hand slots when filled.
I see the point in nerfing full buckets in the inventory while it comes to running around in combat (even when currently 12L of water can be compressed into one inventory slot by using an exquisite belt and waterskins).
Hence: Please let us put filled buckets into the inventory again.
Make us move slowly (speed 1) while we have a filled bucket in there to not spill the contents - either by clamping the speed to 1 or by (gradually) spilling the contents should we move faster - but allow us to move full buckets through our inventory.