LEPA Close Spacing: Save Water, Use Less Energy and Increase Yield

What is Close Spacing?

Close Spacing is a water-efficient irrigation practice featuring low-pressure LEPA bubblers.

Unlike traditional LEPA systems, where sprinklers are placed 60 to 80 inches apart to irrigate every other furrow, the Close Spacing method distributes water over most of the soil surface with 40 inches or less between heads.

LEPA systems gently deliver water from a height of 8 to 18 inches above the ground to combat wind-drift and prevent evaporation loss. Researchers and growers have found that with LEPA heads, at least 20 percent more water reaches the soil than with conventional spray nozzles.


  • Prevent wind-drift and evaporation losses
  • Avoid wetting plant canopy in row crops
  • Achieve a more uniform root zone coverage
  • Can increase yield using less water
  • Low pressure systems can reduce pumping costs
  • Apply water needed in fewer pivot passes
  • Qualifies for government funding in select areas
  • Reduce potential rodent damage to crop and equipment over drip systems

LEPA Close Spacing Options

The LDN UP3 Bubbler Pad gently deposits water onto the soil surface in a bubbling stream. This aerated cascading stream resists the effects of wind and evaporation.

The LDN Shroud is used in conjunction with deflector pads containing an insert. Growers can choose either the beige bubble pad insert or the red CM1 pad insert opposite a variety of deflectors based on their soil type and crop. The Shroud deflects the water from the bubbler insert down in a gentle dome-shaped pattern providing complete coverage of the field. Due to its less concentrated distribution pattern, the LDN Shroud can be used on fields without furrows and is often used for germination as well as irrigation.