Yeah, you want your overflow to handle a lot more than your pump.
or you can run a ball valve/gate valve on the return pump to dial it down but IME the best bet is to get a small pump. Underpowering the overflow will keep drain noise to a minimal.
or you can run a ball valve/gate valve on the return pump to dial it down but IME the best bet is to get a small pump. Underpowering the overflow will keep drain noise to a minimal.