Hello and welcome to The Greenkeeper! Today is Tuesday, August 25th and I have received a few questions following this morning's post about our recent SubAir installation on Hole 12 so I thought I would provide a little clarification. Many of you probably recall seeing the image below in a member email on March 6th when we announced the decision to install SubAir on Hole 12 this season.
The components of the SubAir system in the above picture are the Vault, Separator, and Dual Valves. They are connected to the green's existing internal drainage network. I think based on the questions I have been receiving many of you thought everything depicted needed to be installed and you were left wondering how we managed to do so without disturbing the putting green.
All 22 of our greens on property are USGA Construction with internal drainage. They already possess a network of 4-inch dual wall perforated pipe aligned in a herringbone pattern beneath the rootzoone. That network then connects to a single solid pipe which carries excess water away to the nearest catch basin before it is transported to the nearest retention pond. From the as-built legend below you can see our bunkers also have internal drainage.
Below is Hole 12 and you should recognize two main "trunk" lines. Recall there's a ridge at both the front and rear of the green separating the two halves. For this project we only needed to locate the terminal ends of the two trunk lines at the back of the green and make our connections.
Hole 12 Drainage As-Built
Hopefully that clears up any confusion. For a little more info on how the system operates once connected here's a brief product video explaining the benefits of vacuum and pressure mode. I've been using both since we got power connected fifteen days ago. If you have any other questions please don't hesitate to reach out, I love talking turf!
See you on the course,
Matthew Wharton, CGCS, MG