DWC Changing the Res

I buy my RO water at a place in town. $1 for 5 gallons
I recently finished a grow and checked all my totes and everything was clean so I’ll do another run.

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It’s such a pain lugging water around. I’ve got two unused units sitting around that I was going to sell that I got from buying aquarium setups. See if you can find a cheap used one near bye, you’ll wish you’d bought it sooner

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