CowToilet, a Toilet for Cows
If the urine goes on the field, then the farmer gets to dispose of it for free.<p>If the urine gets collected in tanks, suddenly it's hazardous liquid waste and very expensive to dispose of.   The farmer couldn't just dump it in a river!<p>Unless a commercial use for cow urine can be found, or laws changed, I can't imagine this product going anywhere.