Working on plans for an 8x4x4 tank with attached sump and wanted to toss out a couple of ideas. Use a simple overflow so as not to worry about power outtages. Plumb the return pump directly through the sump back into the tank near the bottom. On opposite side use a drain in bottom corner with a valve. Background will be constructed so as to slope toward drain corner. When I need to clean debris just open valve and all will be sucked out quickly. Trying to make this as simple and fool proof as possible. All suggestions, comments, refinements or criticisms welcome.
