Nobody can realistically tell you how long it would take for you to test negative. Each persons body is different and there are too many variables to take into account. Only periodic testing with a THC test kit (using the first void of the day for each time) can give you that answer.

Drinking a bunch of water/cranberry juice in the days or weeks before a scheduled U/A is of no help. Read posts #8 and #13 of this thread to find out why:
http://boards.cannabis.com/drug-test...ur-system.html

...and read post #3 of this thread:
http://boards.cannabis.com/drug-test...ml#post2225714
Burnt Toast Reviewed by Burnt Toast on . Extremely Infrequent Cannabis User Urine Test Question I have been clean for 19 months straight and decided to smoke like 5 times (about 2 grams) during the evening of 10/5/12 and until the evening of 10/6/12 (so about 24-26 hours) and did not smoke anymore after that. How long will it take for my urine to test negative. I have heard from multiple sources that it will be 3-4 days since my use was extremely infrequent. The chances of me getting tested are very slim but just was curious. Please remember I have had a clean system for 19 months prior Rating: 5