Quote Originally Posted by Zandor
If you are using just clean Ph adjusted water it will take about 14 days to do a proper flush.

You don't need to over water them to do a proper flush, drowning your plant will not help to flush them any faster. The plant need to uptake the water too so you can clean out the inside of the plant as well and not just the soil.

Using a commercial flushing product is always a bonus and can speed up the flushing process by a week.
This is the first time I have ever seen anyone say that the inside of the plant can be cleaned. Flushing clears the salt from the medium and corrects toxicitys, I've never been under the impression that you can clean the inside of the plant from flushing the soil. Check my thread in the organic section and you will see why I think this and why I think this is bad practice.