Do humans drink dinosaurs pee

Not so much. All of the water that has ever been on earth has been recycled through evaporation then rain or snow and so on since the earth began. So dinosaurs drank water and peed and the water was absorbed into the ground which filtered it and then it rose to the surface, evaporated, rained and so on. So yes it is the same water the dinosaurs used but any trace of dinosaur pee has long ago been filtered out.