Pour - All the blood that was left after the sprinkling and the smearing should be disposed of in such a manner as to suit the decorum of divine service. It had no sacrificial significance.
Related Commentaries of Leviticus 4:7
Leviticus 4:7
7 And the priest shall put some of the blood upon the horns of the altar of sweet incense before the LORD, which is in the tabernacle of the congregation; and shall pour all the blood of the bullock at the bottom of the altar of the burnt offering, which is at the door of the tabernacle of the congregation.