check the span of numbers on the dial. Referring to the list above and there's the rub you can use our spreader settings tool. If you still have questions the bigger the hole. Walk-behind spreader settings are based on a walking speed of around 3.5 miles per hour. 1 Consistent speed is essential for uniform coverage.PROPER FLOW RATE SETTING. 3. Loosen the hand knob to set the flow gauge to the desired flow setting and tighten the hand knob. 4. Always move flow control arm to off position before stopping or turning spreader. 5. The spreader should be moving before you move the flow control arm to the on position. OVERLAP 8' to 10' APPLICATION DIAGRAM 1 2 3 ...The following settings can be used to apply products not found in the application chart. These are general information settings intended to be used as references. Fertilizer Pounds Per 1000 sq. Ft. 2.5 3 3.5 4 Setting Drop Spreaders 3.5 4 4.5 5 Insecticide (Diazinon) 2 Setting Drop 3 Grass Seed Blue Grass Bent Grass Fine Mixture Coarse Seed ...Republic EZ 11 Scotts Easy Green 26 Scotts EdgeGuard (Pro,