When the Nile turned to blood, what did the Egyptians do for drinking water?

Answer: Dug around the Nile

Because they could not drink the water from the river, all the Egyptians dug around the Nile for water to drink.

“So all the Egyptians dug around the Nile for water to drink, because they could not drink the water from the river.”— Exodus 7:24 (BSB)