Flushing a perpetual hydro garden?

I am using a ebb and flow system with 9 plants (moving 3 in every month or so). My question is that I am getting ready to harvest my first 3 and I was wondering how I go about flushing. Do I just final flush the whole system, harvest the 3 that are ready, and just go back to my nute schedule when I'm done adding the new 3? Will that mess up the other 6 that are in there? I was also thinking about going the aroponic way and I have the same question with that system too. Anyone have experience with this issue?

you would have to have a separate bin/flood table to achieve a proper flush. in your grow how do you keep all the same plants on one table while adding new ones in? every time i begin to flower a vegged plant i have to ease up on my ppms or i fry the roots with bloom nutes, then i gradually increase once a week on rez changes. but anyways for a good flush your going to have to build some buckets or something and create something so your plants have a supply of its own fresh water for a week to flush out the nutes. flushing once dont do anything but get rid of some of the salts, but flushing it a week will allow every nute to be used up in the root system and the plant itself.

Depending on the complexity of the setup I would either:

Build a very small and basic system that you can use for flush consisting of a small res and a basic pump. Focus must still be kept on circulation and oxygenation, and at the least use distilled. You can build a system like this for very cheap, you would be surprised.

Put them in bins, and manually administer distilled or RO water, depending on setup this could be laborious.

Flushing makes a noticable difference in the taste, texture, smoothness, toxicity, combustion, and body of the dried medicine.
:pimp:

Absolutely agree with cigarettes42...not only separation for nutes, but what about adjusting the lights when you have some plants that are 10" tall and others that may be 3 ft tall? You're just not being fair to the plants.

SN

I'm not really having problems with the nute transition, my ppms are at 1200 which is low enough I think so there are no problems BUT the light distance is an issue, my new veg plants stretch quite a bit to catch up when they first go in (or at least this last set did). Looks like I need to go back to the drawing board and figure a new system. Maybe three seperate smaller systems set on a staircase sort of risers? Here is a pic for fun. :)

Sea of Green. Your buds look awsome.

You must have seperate tables for each stage of growth. This is the most important thing to be able to adjust each stage. If you add any flower additives or something the young ones shouldn't have your screwed.

In a single table or system. They all go in they all come out.

You can try to put the young ones up higher and it will help a bit but the stretch in flower is going to happen. Strain related.