Tag: Particle Size
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Module 5 – Setup
Set Up NOTE: This is probably the most important section in this course. Sand is the most cost-effective filtration media anywhere! And therein lies a problem. You see, if you pour water containing organic matter onto sand, the organics will be trapped on the surface where they will eventually build up to the point where the…
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Module 1 – Sand
Sand No Sand – No Civilisation Sand is a benign substance that resides in the back of our minds. For most of us, it holds no more day-to-day interest than the rocks and roads – and the other physical aspects of our environment. We know that it exists but it hardly warrants a thought. But,…