If i drink 4 beers will it be out of my system in 3 days?

well lets see i went to a friends house for new years and i have two beers in a 5 hours. then i stoped. but in between the two drinks i had about 15 drinks of water back to back. then i drank the last one and then went back to drinking water. then the next day i went over their and i have 4 more beers in a 4 hours span and i have a weak *** mix drink like one shot to 11 oz of oj. but here is the catch i have not drinkin a beer or anything in 17 months. so i was woundering if i would piss clean in three and one half days. in the three days i have been drinking alot of drinks of water, working out and things.