Grooming
Grooming is generally aimed at lifting fibers, redistributing infill and improving surface consistency using equipment appropriate to the system.
Decompaction
Decompaction works deeper into compacted infill to restore mobility and resilience where needed. It is a more condition-driven maintenance activity.
Why the distinction matters
Calling every pass with a brush “decompaction” can misstate the work. Scope language should describe the equipment, depth and objective clearly.
When both may be used
A maintenance visit may combine surface grooming with deeper decompaction, followed by infill redistribution and final field inspection.
What grooming is trying to accomplish
Routine grooming generally focuses on the upper part of the system: lifting fibers, moving surface infill and improving consistency. The equipment and pass pattern should be appropriate to the field and should avoid dragging or stressing seams and inlays.
What decompaction is trying to accomplish
Decompaction addresses infill that has packed more tightly and lost mobility. Depending on the machine and field system, tines or other mechanisms work deeper than a surface brush. Because the intervention is more aggressive, the operator should know the field construction and avoid using a generic depth setting across every surface.
How to write the scope clearly
Ask the vendor to distinguish brushing/grooming from decompaction and to identify the machine or method, intended depth/objective, number or direction of passes where relevant, final grooming and documentation. Clear scope language makes bid comparisons more meaningful.
| Factor | Grooming | Decompaction |
|---|---|---|
| Primary goal | Fiber orientation and surface infill redistribution | Loosen compacted infill where appropriate |
| Typical timing | More routine | Condition-based |
| Equipment intensity | Generally lower | Generally higher and depth-sensitive |
| Used for | General surface care | Compaction-related conditions |
| Not a substitute for | Deep decompaction or repair | Infill replacement, cleaning or testing |
Use this as a planning resource
STMG resources are written for facility owners and field managers seeking practical information about synthetic athletic-field maintenance, inspection and testing. Manufacturer requirements and project-specific conditions should always be considered when making field-care decisions.
References & Industry Guidance
ASTM F1936 addresses field impact attenuation. The Synthetic Turf Council guidelines provide general owner-focused maintenance guidance. The current field-manufacturer maintenance manual and project warranty documents remain primary field-specific references.
References are summarized independently and do not imply endorsement, membership or certification.