If outside in the shed- you’ll want to periodically '‘bomb’ the space with the equipment (but not the plants) still inside with a greenhouse bomb. No matter how well you clean lawn equipment-mites and thrips will find a way in! Sounds like you got this pretty well planned out!
We used DWC for years-- I just change the buckets every 2-3 weeks and between stages… no need to flush as long as you are keeping the ec and ph stable!
(IMO) DWC=easiest grow ever!
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