hi i just needed some imput,can someone help, i have 20 days to go according to my flowering period, people talk about flushing 2 weeks befor it's ready, i have a 2 gallon pot, do i flush with 4 gallons of water and do i use distilled water or what, and do i only flush once and then just use water or do i haft to flush more than once. and what's the purpose of putting them in paper bags, do i do it after i hang them for a few days...?