Interesting. I have an enema bucket that hold 2 quarts, and I don't know if I'd have enough urine by the end of the day though. Do you just let it sit at room temp, or do you store it in the fridge?
I always thought that what comes out of our body should stay out. I mean, doesn't urine have a bunch of toxins that the kidney's filter, and what about ammonia. Nevertheless, it sounds tempting to try once.