Bible Verses About Purifications: Of priests performed in the brazen laver

"You are to make a basin of bronze, with a base of bronze, for washing. Place it between the tent of meeting and the altar, and put water in it.

He also made ten basins for washing and put five on the right and five on the left. Items needed for the burnt offerings would be cleansed in these, but the Sea was for the cohanim to wash in.