Alright folks, I'm wondering if someone can enlighten me on using old soil again. I've got about 15 ltr of soil that was only in use for 4 wks or so, plenty of roots etc mixed in with it though. How do I go about cleaning it or ridding it of any potential bugs etc, then using it again? I imagine it's gonna need revitalising, so the usual organic amendments for each need, nitro, mag etc?
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