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![]() ![]() Please excuse my ignorance or stupidity with this as I've read Albert's post a few times. Sump vs DT - basically flow to push the water through the rock? (obviously over simplifying the entire explanation) And, Brad, you have 100#'s in what size tank? Next question is then do I need 150 #'s in the 180? Last edited by Coralgurl; 09-21-2012 at 07:29 PM. |