Now here is the problem I have and always will , I have a very limited choice of soil , now I can get , a not to bad a one from the local hardware store but it is pre fertilized , so what I am doing now is flushing it many times before I use it , I also use about 30 % perlite maybe more and I was thinking of mixing in seedling soil , I have chlorine in the water which I am about to set up a water filter to take it out , so what I am thinking is after a grow can I reuse the soil if I was to flush again then reset the soil with all the fungi ect . :dunno: