Gypsum is used to stabilise dispersive soils on dam embankments so that both surface erosion and potential tunnelling and piping failures are reduced. A fine-grained gypsum is preferable because it is more soluble. Piping or tunnelling occur through a dam wall or embankment when water seeps along a line of weakness (ie crack in dry
Wyangala Dam upgrade good news for Lachlan river irrigators as the total potential capacity is increased. The good news also comes as the dam level has reached over 20% for the first time in some years. The Wyangala project is one of seven dam safety upgrades being completed as part of the NSW Government’s $350
Lettuce is the pick of the crops. Ed Fagan of "Mulyan" from Cowra, a user of Super Ag Gypsum, grows up to 4 million tonnes of iceberg lettuce annually which the majority is sold to fast-food chains such as McDonald's, KFC and Subway. ''The drought has been good for our business,'' he declares. Annual turnover
