How Often To flush?

Hello fellow growers I have been doing some testing and I would like some input from some other growers and other methods><

So the question is How often do you Flush your plants? ex. every water change.

What Products do you use? ex. Floraclean

How long? ex. 3 days

and whatever else you experts can come up with

Every month (4 weeks )
Clearex
WTF do you mean how long?

Every month I flush my plant with 3 times the container worth of regular PH'd water, I do it all in one night. 9 gallons through my pot in about an hour and a half.

Once a month. If your doing hydro let it go at reg watering for one day and then empty , and if in soil 3 times the pot size (1 gal pots use 3 gals flush) I use Flora Kleen.

what happens if you dont flush??????