pH
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about pH
The pH in water is measured how acid or basic it forms a scale of 14. pure water is neither said or base and pH of 7. if the pH is more basic it is from a scale of to 14. pure water is neither acid or base and PH of 7. If the PH in water is low it means that the water is acidic and the higher ph is the more basic it is. the level of pH in your drinking water is between 6.5 8.5.
Some organisms in your water carry diseases. when we take water from lakes and rivers it goes through a filter and when it goes through a dissolved oxygen measure the biological changes in ponds and lakes. plants give the water dissolved oxygen. the biological passivity maters like phosphate iron and other organisms. plants need nitrogen to grow and if the plants don't have nitrogen they don't produces oxygen then every thing dies. the United States public heath says you need 10 ppm for drinking water.
Septic System
These are the stages that your waste water go's threw First your waste water go's through water systems that filter out the waste. next it go's throw a gravel bed that way it can get rid of the rest of the bacteria. after that it gos threw a chlorine pool and then it settle in the light to purify it.