I'm an apartment dweller, so I don't have space for a recirculator. So I use my bath tub! I am single and live alone so it works for me. (WARNING: May not be compatible with some spouses/roommates.) By using two tubs, one catches tailings, while the larger works like a sediment pond. Only very light dusty silt gets into the tub, making it easy to rinse the tub when done. By putting the pump at the high end of the bath tub, the silt mostly stays out of the pump. Since the Gold Cube is designed as a concentrator, not a sluice, I use it to clean cons below 8-mesh. Helps me stay busy during winter months, or for cleaning samples taken from dry areas while backpacking.