quick dumb question

I had always thought flushing was watering the capacity of the pot 3-4 times.

Then I heard it was only 2 times.
Which is is 2,3 or 4.

Also my pots are 6 and a half gallons and no I am not growing trees - even though thats what they were starting to look like before I went to 12/12.

just water with strait ph'ed water for a week thats what i do fuck the rules

I use 3 to 1.

try your own shit man, maybe you will come up with something better, there is a lot of different methods, some flush some dont some use dark to force the plant to use up nutrients. some with 2 the volume of the pot some flush 3x, but it usually takes two weeks for the plant to empty out, excluding the darkness tech.