Determine Manifold Pressure

NOTE: Ambient air temperature and altitude can both effect air flow. Adjust manifold pressure when these conditions affect performance.

Manifold pressure is correctly set when:

• Equal amounts of product are delivered to each boot.
• Tubes and hoses do not plug.
• Hoses empty quickly and evenly when shut down.
• Seed is not blowing out of seed trench.

		Manifold Pressure Settings
Pressure with 19 cm (7.5 in) Row Spacing	Pressure with 25 cm (10 in) Row Spacing	Pressure with 38 cm (15 in) Row Spacing	Used for	Notes
14" H2O	14" H2O	14" H2O	Sorghum
30" H2O	30" H2O	23" H2O	Wheat	Adjust pressure upward if plugging occurs. High seeding speeds or high seeding rates require higher manifold pressure setting.
30" H2O	30" H2O	23" H2O	Soybeans	Adjust pressure upward if plugging occurs. High seeding speeds or high seeding rates require higher manifold pressure setting.
30" H2O	30" H2O		Barley, Oats, Rice	Adjust pressure upward if plugging occurs. High seeding speeds or high seeding rates require higher manifold pressure setting.