"Drill and Fill"

Over the years, low areas have developed in a few areas on the greens which will hold water. These ares will rarely dry out and just become more and more saturated, which is more detrimental to the turf than being too dry. We use a tool to measure our volume water content percentage called the TDR 300. Our normal healthy VWC % is between 15% and 19%, some of the saturated areas can be as high as 50% plus. To help alleviate this, we use a l" drill bit with a board that has been pre-drilled for uniformity and drill down to the gravel layer. Once the material has been removed, we fill the holes with Profile, which is a porous ceramic material that will help move moisture from the soil down to the gravel where it can be drained through the system. This process is a short term solution until we re-grade the collars to an acceptable level.

The drill and template

Drilling to the gravel layer

This black material is what we are after. It is void of oxygen

Filling holes with Profile