Quote Originally Posted by FakeBoobsRule
I know this thread is old but for people who read it and wonder, drinking a lot of water or fluids days before the test is useless. As long as you are properly hydrated you will not be able to raise your kidney's filtration rate by loading up on water. You kidneys will regulate your blood volume to adjust for the increased water intake and you will not be able to increase your kidney's output of THC metabolites.
i think you might have reversed your thinking there. it's not that less THC total is filtered, it's that you dilute your urine enough so that there are say 1 part per 100,000 units of water instead of 1 part per 10,000 units of water. dilution works. only problem is 'specific gravity' or density of your urine goes down and the lab can check that as well.

this thread gives pretty detailed explanations of how to make your urine not seem diluted as well. not sure if it's as reliable. and nothing really seems as reliable as substituing.


this all depends on how old you are too. after 25-30 peoples kidneys really slow down. and it depends on your weight, because thc can form a suspension with your fat that makes it a very slow release over a very long period of time.