Newbie need help - Flow Question.

Originally Posted by jpdutton

I would suggest you upgrade the return. I don't know what your drains can handle

My drain (2 Big drains) built in with builtin overflow, it will drain as much as any exceeded water in the main tank. So, I guess the option is to update the returns pumps. What is your suggestion for those pump to get enough power but not much the "humming" noices though.

Thanks alot for all your helps...