Sand Injection

Today we have been evaluating the Graden CSI sand injection machine. 

The Graden Contour Sand Injection machine is a scarifier/aerator with the ability to scarify to any depth from between 1mm to 40mm, whilst simultaneously backfilling the grooves with either sand or a combination of sand and seed to improve surface drainage and remove thatch.

We carried out the treatment on the putting green at two different depths to allow us to monitor and evaluate recovery times. 
Fitted with 2mm blades, set at 30mm spacing we impacted on 7% of the surface area and injected 520 kgs of kiln dried sand into the top 20 mm of the green.

Scarifing & Sand Injecting the putting green

Checking the depths

A close up showing the depth of the injected sand 

Another close up

Surface after clean up and rolling after sand injection to 20mm depth  

Surface after clean up and rolling after sand injection to 10mm depth