How is bunker sand drainage measured? Learn how percolation rates, ASTM F1815 testing, and field conditions affect bunker sand performance over time.

Topdressing sand and rootzone mixes may look similar, but they serve very different purposes. This article explains how particle size, organic content, and material compatibility affect drainage, nutrient retention, and turf establishment—helping superintendents choose the right material for maintenance, construction, or renovation.

Bunker sand performance doesn’t fail all at once—it breaks down gradually as drainage slows, contamination builds, and wear accumulates. This article explains the most common causes of bunker sand degradation, including fines migration and organic buildup, and outlines the warning signs that indicate when sand may need to be replaced or renovated.

Topdressing is one of the most effective ways to improve turf health, drainage, and long-term playability. Learn how the right sand profile strengthens your root zone, smooths the surface, and builds firmer, more consistent performance across greens, tees, fairways, and athletic fields.

Bunker sand naturally changes over time, impacting drainage, consistency, and playability. Learn the key causes of sand degradation—and the maintenance practices that keep your bunkers performing at a championship level season after season.

Discover how Thelen’s Double Diamond Bunker Sand rivals national brands like ProAngle in performance and consistency—delivering elite drainage, structure, and playability trusted by premier courses such as Erin Hills and top facilities across the Midwest.

Topdressing is one of the most effective ways to keep turf healthy, smooth, and resilient. By applying a thin layer of sand across greens or fields, turf managers improve drainage, reduce thatch, and create consistent playing surfaces that perform season after season. Learn how this essential maintenance practice supports stronger turf and better playability across golf courses and sports fields in the Midwest.