You spit out the water, you don't take it from a water source. This is what Kisame used against Guy and his team, and they had to avoid it all the time by jumping on the rocks.
(Suiton: Gufuu Suika) - Water Style: Typhoon Water Vortex
Rank: A
Type: Attack/Defence
Range: Short-Mid
Chakra cost: 30
Damage Points: 60
Description: ‘Wind Style: Rasengan’ and ‘Water Style: Destruction Torrent’ combo that makes a tornado of water that can be used to attack or defend. Can also be used to drown out wind and fire combos (no water source required).
The attack used by Yamato and Naruto. Combine these two and make a tornado of water to attack or crush elemental combinations (wind - fire)
(Suiton: Gufuu Suika) - Water Style: Typhoon Water Vortex
Rank: A
Type: Attack/Defence
Range: Short-Mid
Chakra cost: 30
Damage Points: 60
Description: ‘Wind Style: Rasengan’ and ‘Water Style: Destruction Torrent’ combo that makes a tornado of water that can be used to attack or defend. Can also be used to drown out wind and fire combos (no water source required).
The attack used by Yamato and Naruto. Combine these two and make a tornado of water to attack or crush elemental combinations (wind - fire)