Why a flood of water?

Hi,

Shemot 6:!7 says, "And I, I will bring a mabul of water". A midrash is bothered by the language which indicates that Gd could have brought a mabul of anything, and He chose water, specifically. Why choose water?

"Gd said: They anger Me with the good I have poured upon them, and so with this I will punish them."

(Talmud, Sanhedrin 108a)

Have a great day,
Mordechai