South Africa’s population has increased by about 530 000 people to 49.99 million, according to Statistics South Africa’s Mid-Year Population Estimates. This year’s estimates are up from last year’s updated estimate of 49.46 million. The estimates also show that 51 percent (about 25.66 million) of the South African population is female. Black Africans at 39.68 […]
Tag Archives | pool backwash recycling
Groundwater Pollution: An ever-increasing problem
About half the population in the United States relies to some extent on groundwater as a source of drinking water, and still more use it to supply their factories with process water or their farms with irrigation water. However, if all water uses such as irrigation and power production are included, only about 25 percent […]
Using Fish as Bio-Indicators of Water Pollution
Tilapia now SA’s own bio-indicator of water pollution Southern African water specialists can now use a local Tilapiine species – instead of alien fish species – to test whether water sources are polluted by compounds that can cause hormonal imbalances. Such chemicals can subtly mimic the female hormone oestrogen and alter the male hormone testosterone, […]
Don’t Let your Swimming Pool Backwash Water Damage the Environment
Used since the early 1900s, chlorine is one of the most widely produced industrial chemicals. About 10 million metric tons are manufactured in the US each year – $72 billion worth. Annually, approximately 5%, or 1.2 billion pounds of the chlorine manufactured is used for wastewater treatment and drinking water “purification.” The lethal liquid or […]
Water Saving Tips for your Swimming Pool
You can save precious water with a few simple steps… around your pool Use a pool cover. It will reduce water loss due to normal evaporation. The cover can also reduce heating bills by preventing night heat loss and will save on chemicals too. Pool covers come in a wide range of types and costs. […]
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