The water also causes the whitish, lighter membranes to float. The seeds sink to the bottom. So it's easy to separate and clean.
Another thought --an apron-- is good protection in the kitchen when you start wrangling with unknown foods.
Glad to know you tried a new type of fruit.
Pomegranate seeds are edible. (Could separate out with a potato ricer and the push thru a cheese cloth--as if you were making a jelly instead of jam.)
Pom's are good in salads (the green leafy kind), cuz they add a nice sweet crunch.
Also good with blackberries, rasp's, mango ....
What were you going to use them for Jerry?
Pomegranates in Jewish culture have a special significance. It is a token of love. A Jewish man would give a women one as a sign of his love. Some believe itis the "forbidden" fruit of the Bible.
Wikipedia has an interesting article all about it. I would presume that Britannica does also.