RDWC bucket sizing question

@Myfriendis410 - hey, now that i setup the ro you suggested (works great, thanks), i am off on my next setup rdwc. i picked up 2 17 gal containers from the store - mainly for reservoir but got to thinking will this be ok with using 5 gal buckets for plants. i intend to do only 2 plants, reservoir and water storage. intent is 2" returns with 1" out. if i could i would go to one for my plants but i doubt the 17 gal is big enough? i think i can go to a 27 gal but based on dimensions that is it. i cannot find anything that indicates if sizing differences like that could be an issue - 5 gal buckets, 17 gal reservoir.

tote is below. i think it is 26x17

image

I used those totes as my buckets and one with the reservoir was a larger (29 gallon) as a rez. That gives you a LOT more liquid which helps keep your solution PH stable longer.

You do want to cover the yellow with foil or black paint.

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I fit 4 17 gal totes in my 4X4 tent and run one as the reservoir to add nurtients etc. I have had awsome results. I bought my first system to realize I can build one way cheaper.

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Iā€™m just starting to dabble into DWC, wondering in RDWC do you have to charge each container continuously or just the Rez when changing out water, and is it like DWC changing Rez once a week?

I generally only change the water and flush once or twice the whole grow. That is switching nurients in between grow and flower. After the initial fill that is 4 weeks or so. Then again at flower, and may flush once after 4 weeks of flower depending on ppm levels.