
That was the main concern with the conventional Gradens as so much material was removed from a narrow groove it was easy to close the grooves and therefore difficult to integrate fresh material into the grooves which could create stability issues. This was made worse when operating at depths of over 1" and if there was too much moisture in the surface. It was sometimes a concern of superintendents that recovery time could be longer than desired, we felt this was because a void was left under the surface which led to the development of the Sand Injection to remedy this situation.
Having been designed, developed and tested over a two year period the Sand Injection has had excellent feedback, it lead to one user adding the comment "What can you say about it, it is exactly what everybody needs to do!"

The Sand Injection is not a 'miracle cure' but can play a very important role in a clubs management program. It can work hand in hand with other practices such as deep tine aeration or USGA rootzone connecting everything together to ensure they function efficiently as a team.