Will the plumbing being under the waterline in my sump make it quieter? Also will this allow my overflow to naturally start again? This is the current plumbing but I wonder if I can have the overflows go down more into the water. Water level will be at 10 in and one is at like 11 and almost 10. But my dad said something about the overflow won’t start again when you turn the return pump back on for the drain. How does this work can anyone weigh in please.