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Filtering and Testing Water

Filtering and Testing Water at a Water Plant


Have you ever wondered what goes on at a water treatment plant? First, they filter the water and they test it just to be safe. Here’s an overview of the equipment used and main testing components.


What Do They Need for Water Filtration?


A full water treatment plant needs a full range of professional equipment to maintain their filtration system. Here are just a few common components:


  • Filters: Like your home water filter, gravity and other filter types serve to catch waster, sediment and debris. They may be used at multiple points during the water plants extensive treatment process.
  • Controls: Just like any mechanism, water filtration systems need controls with timers, alarms and adjustable settings. A small control box is frequently the most important part of the entire system.
  • RAS Valves: Sludge is a common by-product of the water filtration process and RAS valves help make the difficult substance easy to control. Professionals and adjust the removal rate incrementally so as to not disturb the working system.


What Are They Testing For?


It’s entirely normal for water treatment plants to test water regularly. It helps the plants maintain a high water quality and identify potential issues early. These facilities commonly test for:


  • pH balance: While pure water has a pH of 7, normal range is between 6.5 and 8.5. Groundwater will have a slightly different range from 6 to 8.5.
  • Turbidity: This term refers to the cloudiness in water. Sediment usually is the culprit between high turbidity levels.
  • Sodium: High levels of salt are common for ocean and seawater, but too much salt can negate the hydration qualities of water.
  • Dissolved oxygen: Too much dissolved oxygen can cause uncomfortable gas bubbles, but the gas should be present in lower levels.


Next time you take a drink from the tap, you’ll have a better idea of how your water was filtered and tested.





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