Venting a green is the ability of air to flow down underneath the green by using drain lines. When installing drainage in the subsurface of the green cavity, have a few drain lines brought to the finished grade on the outside of the green. By having air move freely through these openings, will be a benefit to the green. Oxygen will move out any carbon dioxide (gaseous exchange) that is trapped beneath, which is harmful to turf’s roots and the microbial populations. Also, you can block all the openings at the surface except one, and then pump air in (summer time) to force more oxygen to the turf roots
Unfortunately I had to do this construction procedure a few years after my green was built, because that’s when I learned of the benefits of “venting a green” It was a effort to get it installed, but well worth it.
With my green being so small, the plan was to install two air vents. I would use the back lateral drain line and the front drain line to attach these air vents. Doing this will create an air flow through the drain lines “like opening up windows in a basement”.