How many days do you flush in DWC?

This is my first DWC grow and I was wondering, how many days do you flush till you harvest? Or do you even flush at all?

Yes? You should abesolutely flush, the purpose of a flush is to get all those chemicals of the nutes out of the plants system to make the smoke smooth and non harsh. I say about a week. Maybe a little longer

I ease back my nutes progressively the last 2 weeks. Last 3 days I go water only and low on the pH. (like 5.2 to 5.4)

Oh yea and you should also use final phase in the last week

I use a flushing solution for a few days, Then swich out to just PH'd RO water for 4-6 days.

Why would you PH RO water?


My system flushes 24/7 for the entire cycle.