#12 Greenside Bunker Lining

The recent redesign (2011) and resulting reduced square footage of the front-middle hazard protecting the green has hopefully saved a few strokes from one's game.  Lining bunkers with synthetic fabric to prevent contamination has been a standard practice for the past decade.  The benefits and longevity out way the negatives and cost a majority of the time, but ONLY if the liner is installed correctly and adequate sand is maintained within the hazard.   There are several pitfalls to avoid during the installation process and the most important one is to not skimp on the number of staples installed.  The staples secure the liner to the sub-floor and prevent the liner from lifting when snagged by raking or golf clubs.  In practice, I've learned that 8" is the minimum distance you want to space staples and they need to spaced no more than 4" apart on the seams and edges.  Installation of the liner should also mimic that of shingles on a roof.  The liner on Hole #12 had failed and required replacement for multiple reasons, but number one and number two on my list were lack of adequate stapling and lack of sand depth.

Only 1" of sand depth in most areas of the bunker

Removal of old liner and regrading of the sub-floor

Proper liner installation and adequate staples (1000+ staples for 450 sq ft)

Installing staples (mechanical staple guns can be used on large projects)

This is the volume of sand within the bunker to create a depth of 4"- more sand to be added