gREEn7o0answered grow question 3 years ago Yeah, when I was running DWC I would swap out bucket once a week and wash out the old one.
Just had a spare bucket or 2 to mix up nutes and shit and swap out the others, had the scrog net attached to lids, made bucket change easy enough. Lift lid, put on new bucket, remove old bucket, move plant back under light. Dump and clean old bucket.
Once a week seems to be the norm.