The dam receives its water via the Tugela-Vaal Project which is a pumped-storage scheme involving the net transfer of up to 630 million cubic metres (510,000 acreÂ·ft) of water from KwaZulu-Natal. This is stored in the Sterkfontein Dam and released to the Vaal Dam via the Wilge River when needed.he Sterkfontein Dam is a highly effective reservoir, since it has the depth to store a large amount of water, with very little loss to evaporation. The Vaal Dam lake (reservoir) by comparison has a large surface area and is relatively shallow, which results in a higher rate of evaporation.
Poor quality hay or grass can lead to hay belly in horses. The digestive system of your horse is made to extract nutrients from grass and hay. Horses donât have a way to break down fiber, however bacteria in their large intestine will ferment the hay or grass.
Dietary Causes. Abrupt changes in diet may disrupt your horses digestive system and result in excessive gas. In addition, gas may build up in the digestive tract of horses eating a diet containing high levels of fermentable sugar and starch, such as those found in rich, spring grass and grain products.