flushing in soil is complex really because there arE so many variables. was it an organic super soil or was it a soil where you have used a nutrient mix when feeding? iIn short if you are using a nutrient rich soil and adding no external nutrients then you wouldn't flush, you would just add your water as normal then harvest..
if you have used a nutrient schedule to a soil that is low in nutrient value then you must flush. 2 weeks is good in general providing theres no heavy overfeeding. All you do is on the first 'flush' is water with some run off then after that just give plain un ph'd water until harvest. don't over water which is a large mistake made by newer growers. flushing doesn't mean drowning you plants with water. depending on. plant size and how its taking up feed and nutrients just water every couple of days or so but make sure you are giving enough time for the soil to dry out between waterings. the biggest cause of bud rot after poor air circulation is too mush water through plants at the end. little and often is how I approach it.
I haven't grown in soil for a long long time but the flushing principle is simple really. just don't excess feed and water only for 2 weeks will do the job in most cases. as you get more experienced you can tailor the schedule better (and just switch to cococoir
)
peace
