The Earthquake is the best machine for relieving compaction at depth.

Compaction is now recognized as a major problem in sustaining top quality turf

The feature of this machine is that it will put the maximum amount of air into the ground with no surface disturbance.

The animation above demonstrates how the Earthquake penetrates the soil profile with minimum turf disturbance. The action of the blades once they have penetrated the soil breaks up the adjacent soil, decompacting and aerating.

Broadly, there are two types of soil compaction and they are distinguished by the depth at which the compaction occurs.

Deep compaction

Heavy Irrigation and poor soil quality combined with traffic over wet ground form a deep compacted layer which impedes drainage and root penetration.It usually occurs at depths greater than 150 millimeters. It may be addressed by many aerators but the machine that will provide the greatest disturbance and penetration of air into the soil profile down to 400 millimeters is the Earthquake. It will also cause the minimum disturbance to the surface bringing no soil to the surface.

Surface compaction

This type of compaction is usually caused by a combination of traffic, moisture and excessive organic matter or continuous top-dressing. Over time an excessive buildup of a mat within the turf occurs. This restricts water and nutrient penetration and induces shallow rooting of the turf to above 100 millimeters. This is best dealt with by the Rejuvenator, Coring or Hollow Tyne Coring.