Yup...it's in there. Page 11.
Jason, you NEED to read the entire owners manual because it's important that you not only learn what TO do to operate and maintain the system, it's even more important that you learn what NOT to do because doing it can damage the system...and that can be expensive! And btw, this applies to every system on your boat!
You're obviously a new boat owner...we want to help you become a responsible, knowledgeable owner! So we'll be glad to help you sort out what you don't understand or help you solve problems the manuals don't cover, or even ID a "mystery" gadget...but spoon-feeding you solutions to isolated problems won't help you learn how to avoid other problems.