Parallel
Exodus 7:24
Rahlfs Septuagint (1935) · Berean Standard Bible
ὤρυξαν δὲ πάντες οἱ Αἰγύπτιοι κύκλῳ τοῦ ποταμοῦ ὥστε πιεῖν ὕδωρ καὶ οὐκ ἠδύναντο πιεῖν ὕδωρ ἀπὸ τοῦ ποταμοῦ
So all the Egyptians dug around the Nile for water to drink, because they could not drink the water from the river.