The Cline requires zero setup or adustment. It's a very simple system and it works perfectly. I've heard the pump requires tweaks and sometimes does not work well (not sure why but that's what I read here). The only thing is that you have to install the plumbing correctly for the Cline, just follow the instructions. Also use a good quality tank like Dubro or Sullivan and you're set.

If you intend to mount the Moki inverted, use the OS type F plug as Moki recommends in their manual.