I have never had the heart to tell Andrew on one of his own threads, but pee has no ammonia, just urea and according to Dr. Holmes-Farley, it will do nothing to accelerate a cycle without the urease bacteria to convert the urea into ammonia or ammonium... which if the tank had urease already, they would be able to handle ammonia and no pee would be needed. Don't tell Andrew - I fear that his head may explode if he found out...