Deuteronomy 12:16

רק הדם לא תאכלו ONLY YE SHALL NOT EAT THE BLOOD — Although I have told you that there is no sprinkling of blood on the altar in its case (it being blemished and thus unfit for the altar), you shall nevertheless not eat it. תשפכנו כמים YE SHALL POUR IT [UPON THE EARTH] AS WATER — This latter word is intended to tell you that although they are compared to these חיות, yet it (the blood) requires no covering with dust as prescribed in the case of these חיות in Leviticus 17:13 (Sifrei Devarim 71:15; Chullin 84a). Another explanation is that the word כמים is intended to suggest: It is like water in so far as to make seed (food) receptive to uncleanness just as water does (cf. Leviticus 11:38) (Sifrei Devarim 71:15; Chullin 35b).

רַ֥ק הַדָּ֖ם לֹ֣א תֹאכֵ֑לוּ עַל־הָאָ֥רֶץ תִּשְׁפְּכֶ֖נּוּ כַּמָּֽיִם׃

Only you shall not eat the blood; you shall pour it upon the earth like water.