Quote Originally Posted by Din
Well I guess the best I can hope for is a neg-delute result and hope I get a chance to retest
I did make sure I had some red meat over the last few days so maybe I'll get lucky.
Any thoughts on why I was able to pass a home test on Friday then fail the same test on Sunday.
I don't think the results on Friday were from dilution as I didn't drink that much water or anything else that day
You said that you passed the test on Friday at 9pm. You are much more likely to pass a urine test at the end of the day than with your first void of the day. Also, it is common to pass one day and then fail the next since the metabolites are released every day and some fats may have a greater concentration than others.

I've been clean for 41 days now. Up until day 21 I routinely failed at home tests. From day 21 until day 28 I passed, but on day 29 I failed. Since then I've passed every morning. I think I was a bit dehydrated on day 29 leading to a more concentrated sample. However, it goes to show that just because you can pass a test does not mean you are 100% detoxed. Staying hydrated, testing later in the day, and collecting mid-stream all contribute towards making sure your sample is clean.