Either clean urine, if you're sure its clean or well water should be fine. Depending on how dirty you are, it might work to just add a little of your heavily dilluted urine.
killerweed420 Reviewed by killerweed420 on . topping off QF OK, I just posted about the adding clean urine to my qf .Deige was very helpful in reassuring me about the fact they cant ask for more than 2oz but after reading this post I am thinking it might be safer(due to the amount of samples coming in right at 2oz from everyone thats subbing) to top off the qf with either clean urine or old qf approx. 18 months old....i cant afford another new qf either. The reason I dont just go with an entire 2plus oz of the clean urine is I have a 3 and a half hour Rating: 5