Turf on Fill and Compacted Subsoil: Getting Gel Into the Top 100 mm

Turf is the most unforgiving client a water retaining gel will ever have, because the crop is a 20 mm mat of roots sitting on whatever the site handed you. On a good loam that mat knits in twelve days. On compacted fill, brick rubble, or a skim of poor subsoil over hardcore, the same mat takes three…