FAQ's

How much water/water flow is needed for SDI? 

SDI requires a minimum of 2 gallons of water per minute/acre. However, 5 gallons of water per minute/acre is ideal.

Can SDI be installed on slopes, hills, or terraced ground?

Yes.

What about rodents?

Ground squirrels (gophers) and prairie dogs will cause damage to an SDI system unless they are controlled. 

How much does a subsurface drip irrigation (SDI) investment cost?

An SDI system will cost roughly between $1300 - $1900 per acre depending on the water source, field shape, and size.

How deep is the subsurface drip irrigation (SDI) tape buried?

Subsurface irrigation tape is buried between 12" - 18" dependent upon soil type, tillage practices, and germination needs.

What is the life expectancy of subsurface drip (SDI)?

Subsurface drip irrigation (SDI) was installed at Kansas State University's Research Farm in Colby, KS 25 years ago. This SDI system is still in operation today.  Proper maintenance and good water quality have helped ensure the longevity of this system.