Name: Rick Corey Everett WA 98204 (Zone 8a) Sunset Zone 5. Koppen Csb. Eco 2f
The following might not be sufficient to erase soil-born pathogens that have established themseleves, but it sounds like a great idea for re-using soil that doesn't haveknown, severe problems.
CarolineScott sometimes re-uses potting mix. She described flushing it with good compost tea to displace old soil microbes and establish beneficial new ones. Great idea!