The profile of these Greens is made up of a finer soil texture than others on the course and do not naturally drain as fast. For example the 7th, 9th and 18th Greens are constructed from a sandier material and with the help of their elevation naturally drain well.
Following discussions with the STRI it was decided to try and create vertical drainage channels which will help surface water percolate through the profile quicker. In achieving this the growing environment will improve and surface water following heavy rainfall will not sit on the Green surface for as long.
The work carried out involved verti-draining using 19mm diameter solid tines to a depth of 250mm. Dressing sand was then applied to the Green which was then brushed into the holes using a mechanical contra-rotating brush.
The Green was then hollow cored using 12mm diameter hollow tines to a depth of 63mm. Further dressing sand was applied following overseeding with Brown top bent seed. The brush was again used to fill the holes full of sand. Altogether approximately 13 tonnes of sand was applied to the three Greens.
Verti-draining on a sanded Green
Hollow coring following verti-draining and sanding
The contra-rotating brush used to move the sand down the aeration holes