The only place that should not be rinsed at the end of every mix should be the product lines between totes and the product valves and singles.
Here is the formula to calculate the gallons that a hose holds.
Gallons =
To clean out a product line connected to a stack:
1. Connect the Tote end of the line to a clean supply of water
3. Open the appropriate Product Valve
4. Turn on the flowmeter reading
5. Open the Throttle Valve
6. Start the main pump to pull the water through the product hose
7. When you have pulled enough clean water through, you can then close both of the valves and turn off the pump and flowmeter readings.
To clean out a single:
1. Connect the Tote end of the line to a clean supply of water
3. Turn on the flowmeter reading
4. Open the Throttle Valve
5. Start the main pump to pull the water through the product hose
6. When you have pulled enough clean water through, you can then close the throttle valve and turn off the pump and flowmeter readings.