You can't just drink a ton of fluids and hope to pass urine screens these days. They test your creatinine and specific gravity. All the detox BS in the world can't fix that for you. You more than likely have a negative/dilute result. Up to them if they want to allow you to retest or move along to the next candidate. Next time follow the dilution sticky skipping the aspirin part and paying close attention to the creatine loading part which helps you avoid dilute results. Good luck.