What is the correct sand loading procedure for the Intex Krystal Clear SF90110-1 Sand Filter Pump?

Pour sand slowly into the tank while holding the center pipe to prevent the filter grid assembly from shifting. Ensure even distribution by filling halfway first and then adding water before pouring in the remaining sand between 'MAX' and 'MIN' marks on the center pipe. (Pages 9, 10, references drawing 12-15)