The mitzvah of Hallel and the mitzvah of korbanos of Simcha [shelamim] are obligation on all the days of Yom Tov.

The mitzvah of Succa is for all 7 days. You should not take down your succa as you might need it at the end of the 7^th day. However, a utensil you will need for Yom Tov could be brought in starting from the time of mincha.

Succa 4:9

On Succas there was a mitzvah of water libations after the korban tamid of the morning. A golden utensil was filled with 3 lugim of water from the Shiluach. When they reached the Gate of Water, they blew Tekia Teruah Tekia [____ _ _ _ _____]. They then walked up the ramp on outside mizbaiach and turned to the left.

Two bowls of silver were there attached to the mizbaiach. R’ Yehuda says they were made of plaster but they became black because of the wine that was poured in them. They each had a little hole one narrower than the other, one for wine and one for water, so that they would spill together. The western one was for water and the eastern was for wine. If you poured the libations in the wrong hole, it does not have to be redone.

R’ Yehuda says the water libations was only one lug and it was done 8 days, including Shimini Atzeres.

They said to the pourer, ‘Pick up your hands.’ This was done because one time the cohain poured the water on his feet as he was tzeduki [did not believe in Torah shel baal peh] and the people stoned him with their esrogim.