>>20717291
>Burning cows to death, just because they call it "purification" doesn't change what it is.
A few passages down, we read in Pesachim 65b that the drain holes at the base of the altar that normally kept the blood of the sacrifices from pooling were deliberately plugged during the holy day of Passover! This odd deed caused an already gory situation to become an almost unimaginably macabre scenario. The blood was not dealt with immediately by descending into the SHISSIN. It stayed in the courtyard, and with each successive slaughter of the lamb on Passover, the blood on the floor increased, until it was a vast pool covering the entire floor around the altar! The priests, unable to wear shoes while ministering, therefore walked barefoot in the blood of the Passover lambs.
Thus, it would be at the end of the Passover offering, when all the lambs had been slaughtered and their blood poured out into a messy scene in the Temple, which happened right at the time of the usual evening offering (2:30pm-3pm), that the Temple would need cleansing. The priests would remove the plugs from the drain-holes leading to the SHISSIN at the base of the altar, and the gallons upon gallons of lamb’s blood would begin to descend into the pits. The water channel that fed the Temple Courtyard would then be opened, and the sudden influx of water pressure would flood the courtyard with fresh, cleansing liquid. The soul-laden blood of so many lambs would be rinsed from the Temple courtyard, down into the depths of the SHISSIN, where it would burst forth from its drain in a powerful gush of blood and water into the meager stream of the Kidron brook.
https://www.randomgroovybiblefacts.com/the_bleeding_temple.html
Understanding the Concept of Biblical Purity: An Idea that Defies Translation
https://templeinstitute.org/red-heifer-understanding-biblical-purity/
Numbers 19, Anon.