if you keep the water level right at the bottom of the bins so there is no splash it is not really noisey(might hear a slight trickling sound)the bins are sitting on a mlk crate and the crate just sits in the rubbermaid,pumping just pulls apart at the top of the binns for easy maintenance,and of course the drawers open also for ease of maintenance,i also have a fluval fx5 on this tank as well just to run chemical filtration(a gallon or so of purigen)the sump beats the fluval in biological filtration hands down.