Final Flush Methods

I was wondering what some of you folks do for the final flush. Are you using just ph'ed water and less nutes along side of that. A guy told me recently that straight water will not allow the salts to attach themselves and be flushed. He suggested to lower the nute levels in the reservoir but don't eliminate them completely. His theory is that the salts will draw the other salts to them and allow them to be removed. He said straight water will not completely flush the plants at the end 2 weeks
So how long do you guys flush and what is your method?

the thing with flushing is
"in hydro"...
once over fed ......... the metals wont ever come out of the plant,,,,no matter what amount of water you use!
As long as plants have been fed the right amounts from day one and never over fed.
They need only a couple days of a weak nute solution ............not just plain water. A weaker solution Works better taking out nutes!!!! (osmosis)
Plants need food their last weeks of life !
Only one day of plain water is all thats needed the final feed.

gb123 said:

the thing with flushing is
"in hydro"...
once over fed ......... the metals wont ever come out of the plant,,,,no matter what amount of water you use!
As long as plants have been fed the right amounts from day one and never over fed.
They need only a couple days of a weak nute solution ............not just plain water. A weaker solution Works better taking out nutes!!!! (osmosis)
Plants need food their last weeks of life !
Only one day of plain water is all thats needed the final feed.

Click to expand...

Same is true for soil..soiless mix or true living organic soil. Its just much easier to remove nutrients in a hydro system. Flushing is a myth...any organic growers out there leech their soil?

Very interesting guys....good food for thought.

no expert here but I add nothing (chemical salt wise) but build a decent soil of compost and organics to work with for each crop....
then I use only rain water since our well (house water) is really crappy and high in sodium..
The rain water can use a ph adjustment.. most of the time.. but no flush per se...is required throughout the cycle.
If I do add anything its some bat poop to the soil mixture,which I have not found leaves anything in need of flushing...

I was running synthetics last year and didn't flush. I cut the nute load in half the last 7-10 days, then a proper cure. Everybody that smoked that weed commented on how good it tasted. Hell my bruce banner that I got from dispensary bagseed tasted better than the weed it came from, no flush.

This is a good thread. In DWC I used to change my res to tap water about 4-5 days before I cut. Now in my first ebb and flow run in a long time I start adding just water to my nute mix at week 6. By about week seven it is just low EC water in the tub. The plant will start to cannibalize mobile nutrients from the leaves etc. To each their own technique for their own growing method/style. I use just tap water (low PPM 0.3 EC) solution in conjunction with shortening the light cycle to signal to the plant it is time to finish up. Next cycle I am only going to give them 5 days flush (with much smaller plants), to see what difference it makes. YMMV

*Edit This time for the first time ever I am also trying some chelated flushing compound that is supposed to attract the salts to it, add it at week 6 per the instructions. Not sure these are worth a damn.

That's what I like about growing MMJ, you are always learning something.

2 weeks out start flushing with sugars and enzymes. As for buddys theory, just check the ppm of your run off the last 2 weeks of flush and youll see otherwise