The flushing strategy involves putting large quantities of liquids into your body so that the
drug metabolites will be washed out as fast as possible. It is unlikely that you will remove 100% of drug metabolites using this method, but it can be effective in reducing the concentration of drug traces in your sample.
The Office of Drug Enforcement at the Department of Transportation (DOT) asked Dr Edward Cone from the Addiction Research Center (ARC) to investigate how effective the flushing method was. He demonstrated that drinking 1 gallon of water made the gravity of marijuana in the system drop to extremely low level and also that the marijuana test results would be negative.
levels can stay low enough for a negative for a couple hours after the water was drunk but they subsequently returned to positive. The results were the same wither with "cleansing products" and regular drinking water. With any flushing rather if it's with certo or herbs or some 40 dollar drink you got at GNC or a head shop they all tell you to drink a gallon water afterwards. This is what causes it to dilute levels to pass.
If you are planning on using the flushing method, you will need to drink large volumes of liquids (water and anything else) before the test takes place.
Here's the issues and risk ....
For one flushing too far from a test can easily return to full levels so you have to load up on water pass a first piss containing pre water loading that still contains denser metabolite levels. Then you have to get the next piss to test before it gets contaminated as levels return because your not as flooded and its not that your DETOXED but DILUTED.
Failing from Dilution is a common result of imperfect flushing. Before a sample is drug screened it is VALIDATED .
Urine Validation screens check a sample to normal human levels for Creatinine , pH, Specific Gravity and looks for additives Nitrites, Glutaraldehyde , and Oxidants. So although the density of the drug metabolites are crashed so is the Specific Gravity or density (regardless of B vitamins to turn it yellow) of sample and Creatinine which has to show to prove its human. Allot of the information on flushing on the web is pretty dated and was from before validation testing became a regular part of a drug test.
This is why Passitkit.com doesn't sell the drinks and pills for this reason but produces custom powdered Synthetic urine kits. The First and probably the only real uric acid synthetic urine . It has never failed a test in 15 years which also shows how reliable their delivery kits for substitution like Urine Trouble synthetic urine kit and One Shot are for passing a test at any time.