What to do with my soil?

have like 15 to 18 gal a week coming out
dont have huge back yard unless i can mix it for the next weeks use or do you have to let it sit.
the soil is all really the same thing would the plants that liked the soil before like it now
or should once a month to the landfill be easier
thanks

good question i would like to know the answer to that also ??

i reuse my soil... if u flush b4 u harvest that will get rid of any toxins... u will how ever require more nutes in ur next grow as u have used up many in ur first... juss make sure u have flushed real good b4 harvest so the new roots dont get burned when going bak into the already used soil

Yes, I have reused soil many times. The trick is to try to let it dry out good after the flush and harvest before you start using it again. I used to put my used soil in a huge trash container and mix it around every day so it dries out evenly. After 7-10 days it was ready to use again & again & again.....