I self installed this product. I found the clamp (item 332) that connects the
drain pump (item 325) to the sump manifold (item 505) very loose and came disconnected due to the drain pump just hanging down with no support. Since this clamp is a "pinch clamp" rather than a screw tight clamp, I could not secure it to the sump manifold pipe. I had to use an additional screw tight clamp there and then secure the drain pump with a wire tie. Fortunately I did all this BEFORE connecting and turning on the water. VERY POOR DESIGN AND QUALITY CONTROL.