Bunker sand depth and VWC

We occasionally get questions about bunkers that stay wet. Sand depth (or sand selection) is one thing to check.

Larry sat in on a webinar by Brian Whitlark, USGA agronomist, and appreciated his comment about sand depth and target volumetric moisture content at the surface to prevent algae growth. By maintaining sand at a depth sufficient to keep surface moisture content (roughly equivalent to volumetric water content or VWC) less than 15%, algae will have a difficult time growing near…