residue on bottom of Geopot with 5-1-1
I was transferring some of the 5-1-1 from my 5 gallon Geopots to a 20 gallon bag when I realized the bottom of the bags had white residue. Is the dissolved lime? If so, should I be worried that it will dissipate too soon and not give my plants the pH they need? The 5 gallon bags were put outside just over a month ago.