What is boat slow no wake speed?

No wake speed varies from state to state. In Arizona, the term used is wakeless speed. It is defined as "a speed that does not cause the watercraft to create a wake, but in no case in excess of five miles per hour."

The general interpretation is that if your watercraft creates such a wake that it breaks, or otherwise generates what is called "white water", or water that has been disturbed enough that it creates bubbles or visible waves of any size, you are traveling above no wake speed.

If you place your watercraft engine in gear, and add no additional engine speed once the propeller engages, you should be traveling at an adequate speed to not generate a wake; idle speed. I would say this could be from 600-800 engine RPM's.

Check your specific state's boating laws, however, to find the correct interpretation of no wake or wakeless speed in your state.