If not a regular user, 108 hours should be enough time.
I know that chart says that with a saliva test (oral swab), the detection time is 5 minutes to 24 hours, and that it might be a bit longer for those who are regular users.
I know someone who received an oral swab drug
screen, 11 days after the last use of cocaine
, who still popped dirty; a test 20 days after last use came back clean. I still think it was a 'false' positive, but since the person in question was a heavy cocaine user (probably .5gm-1gm a day IV for almost 5 months, 1-3gms a day IV for the week previous to quitting), everyone said it was probably because of that. However, there seem to be a fairly decent amount of positive results for cocaine at this particular place... but since the person in question HAD been using large amounts of cocaine regularly, and the person was not on take-home doses at the clinic and did not have money, the confirmatory test was not done. Which still annoys her, a year later.
But, if someone is not doing a decent amount of cocaine on a regular (meaning, nearly daily) basis, 108 hours should be fine. You still might want to take the regular procedures (dilution, B vitamin for color, creatine supplement to raise the creatine levels), but as this is dilution & they DO check for that (which is why you have to do all the other stuff to try to prevent them figuring that) AND you have plenty of time since the last indulgence AND you don't indulge on a regular basis...
You should be fine. Without diluting (meaning drinking a shitton of water).
In regards to "can't afford a home urine test"...can you afford to, you know, not have a job?
Think of it that way...
~Kailey, who thinks with all the time available you don't need a home test anymore anyway...