gusman4 Active Member Apr 30, 2012 #21 Bargar- i believe sub once wrote you might want to add a small amount of cal/mag to RO water when using it with super soil. This might of changed though. I just filter the chlorine out and use the tap water with great results.
Bargar- i believe sub once wrote you might want to add a small amount of cal/mag to RO water when using it with super soil. This might of changed though. I just filter the chlorine out and use the tap water with great results.