The right and left lateral ventricles are structures within the brain that contain cerebrospinal fluid, a clear, watery fluid that provides cushioning for the brain while also helping to circulate nutrients and remove waste.
Phosphates usually enter a pool in the form of Tri-Sodium Phosphate, or TSP. During shocking of the pool, or adding of enzymes, TSP is broken down into the tastiest algae food known - Ortho-Phosphate. In this free state, ortho-phosphate provides all types of algae with a good food source.
Hi Bernard, to test the phosphate level in your pool, you can use the Natural Chemistry Phosphate Test Kit. This easy to use kit will provide you with the phosphate level of your pool in PPB (Parts Per Billion). Ideally, phosphate levels should be as close to zero as possible, but levels under 100 PPB are okay.