Are the rivers and springs in the third bowl judgment literal blood?
Yes, the third bowl judgment causes the rivers and fountains of waters to become literal blood. The passage explicitly states this is literal blood, not symbolic. It recalls the Egyptian plague where Moses placed his rod over the river, making the water undrinkable for the Egyptians.
Les teaches that the third angel poured out his bowl upon the rivers and fountains of waters, and they became blood. He emphasizes that this is literal blood, not symbolic. He connects it to the Egyptian plague, where Moses placed his rod over the river and the river became completely unpalatable, so they could not drink it. This judgment makes fresh water undrinkable. It follows the second bowl, where the sea became like the blood of a dead man, but for the rivers, the text says it is literal blood.
And the third angel poured out his vial upon the rivers and fountains of waters; and they became blood.