RDWC Refill/Flush Help Please

Hello,

First RDWC grow and only a few weeks left of flower. I have been draining and refilling my RDWC system every seven days, but have recently been reading that I should be doing a full flush every week for a better smoke.

Do I fill the system up with water only and run through for a few hours and drain, then refill with water and nutrients?

I do have oxy plus lying around as well which has 50% hydrogen peroxide in it..
Should I be adding this to the weekly flush as well to clean the roots?
If so, how much should I be adding?

Thank you for your time.

The drain and soak and refilling is good I usually just add water the last 2weeks

Budoctor said:

The drain and soak and refilling is good I usually just add water the last 2weeks

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Ok cool I will go with that,

Cheers

I think you are reading soil advice, maybe some hydro growers clean their system every week though. I clean mine out between grows which probably isn't the best, but I don't have a lot of time to spend growing weed.

As a long time RDWC hydro grower, I have seen the advice and I've seen what works for me.

Do a quick flush between batches of nutes- but only to finish getting the old stuff out. You don't want to leave just water in place as you'll starve the plants of essential NON-mobile nutrients, like calcium.

End of life cycle flush is also over rated. In rdwc, just bring your EC down to 1.0 or so and let your pH drift up into the mid 6 range. Do that for a few days and you're golden.

As ttystikk states really.

I've grown with soil, coco, and hydro, and have tested flushing, and the only thing i ever fou/nd it to achieve was causing a headache on whether it's too early to flush or not. From my seat, i've seen far more issues caused by growers being told to flush, than not. Too many instances of growers thinking it's almost harvest, flushing their plants, only to realise that it has more weeks left than they thought and finding the plant to become heavily defficient, in turn having negative effects on their harvest.

Awesome, thanks for the replies guys that's a big help.

tip top toker said:

As ttystikk states really.

I've grown with soil, coco, and hydro, and have tested flushing, and the only thing i ever fou/nd it to achieve was causing a headache on whether it's too early to flush or not. From my seat, i've seen far more issues caused by growers being told to flush, than not. Too many instances of growers thinking it's almost harvest, flushing their plants, only to realise that it has more weeks left than they thought and finding the plant to become heavily defficient, in turn having negative effects on their harvest.

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I used to be a big no flush guy, and of course I'd never flush an organic soil crop, but I flushed half a hydro crop last year -- 'cuz I ran out of nutes at the very end -- and it cured better and burned better. I then noticed on my next run that stuff I didn't flush had more of a perfume-y taste, and not IMO in a good way...and that's made me believe it's worth flushing at the end of your run. Just my experience, and I think it's also dependent on what genetics you're running. YMMV.

Yeah well I like my plants to turn fall colors thst way I know im not smokn nutes and its a cleaner smoke and taste great

Budoctor said:

Yeah well I like my plants to turn fall colors thst way I know im not smokn nutes and its a cleaner smoke and taste great

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Youre not smoking nutes. well done on understanding how plants grow though. I peronally like my plants to be green, you know, healthy, happy, giving me optimum yield.

I'll say it again. People claiming it's a cleaner, tastier smoke. Do you know think that if this was really the case everyone would just save the money on nutes and flush for a better product? There is a VERY good reason why let's say 50% of growers don't flush, because it makes no difference. It is prevelent in all walks of life though. Tell someone something is organic and they'll swear it tastes better, regardless of the fact that it's the non-organic variety. People will convince themselves of anything to make themselves feel better. Just another case of pot-snobbery.

Not sure if flushing at the end helps or not as I have never done any true comparisons but a couple of runs ago I was using a bud enhancer that had a noticeable odour. Harvested a couple of plants early and they still retained this odour but the plants that were left for two more weeks were fed straight water with a trace amount of nutes and no bud additive. The after taste had disappeared but again not a definitive test just my experience with that particular run.