I would like to know if it would be a good idea to re-use ffof n happy frog soil in addition I received a free bag of mushroom compost nitrogen .30 phosphoric acid .03 soluble potash .03 to mix in to use soil any thoughts?
I’ve heard of it being reused for vegetables. 
If you do a complete flush the soil is pretty much inert. So amending it with compost, dolomite, earth worm castings etc and then “cooking” it in a bin or composter for 30+days should make it useable for cannabis or anything else.
I haven’t done it yet but I am researching. That ffof gets expensive if you just toss it after each grow.
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@Drinkslinger I will try a mixture I have a mountain have not started a journal but expect one soon
@Hogmaster n @latewood n @countryboyj chime in please
I have reused my soil
Its a good idea to flush your soil prior to reusing
To ensure you get rid of any built up nutrients in soil
I would buy new seed starter soil tho
Would be a good idea to slurry test the soil as well to get starting ph and ppm numbers if you reuse
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I reuse all of my soil. I re-ammend it by dumping it in the compost pile and mixing it thoroughly with the rich compost… I then leave it sit for a season and reuse it next year. never had any issues to worry about so far. Good luck with your grow.
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