This depends, are you trying to store the urine to use for a drug test? If so then no it is not good to store the urine in a water bottle. It is unsanitary and does not keep the urine at the correct temperature. Any kind of contaminant that may be in the bottle will get into your urine. Most companies that bottle the water use certain chemicals to sanitize the water bottle this will get into your urine and 9 times out of 10 will make your drug test come up either a false positive or a false negative. False positive is when your drug test comes up positive and for no reason at all. False negative is when the test comes up clean and it shouldn't have. I hope this helps you out.