I got a Reef Octopus Xtreme 160 yesterday and have it all hooked up. I have a few questions though. First, I heard these have to "break-in" before it starts producing skimmate. How long is the break in? My model has the Gate valve, do I just set it at the max? Also as water comes out of the gate valve it hits water and is kinda loud. Is there way way to muffle that?