Zevachim 8:6 - 8:7

אם יש בו מראה דם כשר – and these words [apply] when the water fell in to the blood of Holy Things [and it has the appearance of blood - which can be sprinkled on the altar]. But if the blood of Holy Things fell into water, we state, each drop is nullified as it falls (Talmud Zevakhim 78a), and even if it has the appearance of blood, it is invalid.

נתערב ביין – which is red.

רואין אותו כאילו הוא מים – but if this blood is recognized in those of the water, it is kosher/fit.

בדם בהמה – [the blood of an animal] that is unconsecrated.

רואין אותו – the blood of an unconsecrated [animal] as if it is water, and if it had the appearance of the reddish color of kosher blood that is recognized by them, it is kosher, and even though the disqualified blood is greater than it by a lot.

אין דם מבטל דם – according to Rabbi Yehuda, one type mixed with the same type is not annulled, and even a drop within a large vessel. Even though if the blood was water, the kosher blood is not recognized in them, and even so, it is kosher/fit for sprinkling. But the Halakha is not according to Rabbi Yehuda.

נתערב בדם הפסולים – as for example in blood that was ritually slaughtered outside of its proper time.

ישפך לאמה – to the river-arm/sewer that passes in the Temple courtyard and goes down to the Kidron ravine/river-bed. And we don’t state that we view it as if it is water, but if the kosher blood is recognized in them, he would sprinkle it, for we make the decree that perhaps he would come to make fit blood that is disqualified in their eyes. And similarly, the last blood that is oozing out of a vein. For from the Torah, the last blood that is oozing out of a vein is not appropriate for atonement. As it is written (Leviticus 17:11): “For the life of the flesh is in the blood, and I have assigned it to you for making expiation for your lives upon the altar.” The life blood that leaves through it atones, but when the soul doesn’t leave, it does not atone. And we make the decree on the life blood that was mixed with the last blood that is oozing out of a vein, for perhaps it comes to be made to be fit through the sprinkling of the last blood that is oozing out of a vein in his eyes.

רבי אליעזר מכשיר – ab initio with the last blood that is oozing out of a vein that was mixed with the blood of the soul. For he holds that the last blood that is oozing out of a vein of an animal is found to be greater than the life blood, therefore, why do we make a decree, it is to for him like when the blood of an unconsecrated animal is mixed with the blood of Holy Things, that we don’t decree anything regarding it. For when it is mixed with disqualified blood, which is a matter that is frequent, Rabbi Eliezer does not dispute. But the first Tanna/teacher holds that sometimes when the last blood that is oozing out of a vein is greater than the life blood. Therefore, he decreed where it was not greater, on account of the where it is greater. But however, where the Kohen took counsel with the Jewish court if he should give this mixture or if not, and he gave of his own accord, the first Tanna/teacher admits that it is kosher/appropriate, for it is mere decree and de facto it is kosher. But if he came to change his mind, we tell him that to pour it into the sewer because of the decree. And the Halakha is according to the Sages.