I've never had a BRS but I've heard gfo media can slip through the filters. Have you guys not had this problem? I still like my TLF reactors even though the build quality may not be as stout as BRS. And aren't their reactors dual meaning you can only have one pump working on both reactors? Carbon needs a higher flow rate then gfo and carbon needs to be replaced more often. Not bashing anything just bringing up some thoughts.