Turbidity Testing

The turbidity is a measure of how cloudy water is, sometimes called the water clarity. This is often used as a measure of the sanitary quality of water and can be used as an indicator of filters not working effectively.

The naked eye can see if water is turbid but cannot distinguish the low levels of turbidity which can indicate a problem with water chemistry or filtration. In order to measure low turbidity level changes, an electronic meter is needed. Turbidity is measured in NTU (Nephelometric Turbidity Units).

  • Pool and spa – Turbidity is used to measure the clarity of pools and spas. This is important to ensure that swimmers, lifeguards and camera systems can see clearly through the water for safety reasons. Clear water is essential for the aesthetics of the pool, but the turbidity of the water should be below 0.5 NTU which is not visible to the naked eye. If there are increases in the turbidity of the water, this can indicate that there is a problem with the pool chemistry and could also be an indicator that the filter system is not working effectively.
  • Drinking water – Turbidity monitoring is used to measure water processing efficiency. Turbidity changes in drinking water can indicate that filters are not working correctly or that there is a problem with the chemistry. It could indicate ineffective disinfection or poor coagulation and flocculation.
  • Wastewater –  Turbidity monitoring is used to measure water processing efficiency. Turbidity changes in wastewater can indicate that filters are not working correctly or that there is a problem with the water chemistry. It could indicate ineffective disinfection or poor coagulation and flocculation.
Turbidity Testing icon

RELATED PRODUCTS

Turbimeter Plus product image
Turbimeter Plus

The Turbimeter Plus combines testing for Turbidity and TSS on one instrument, delivering rapid results for two of the most important indicators for water quality in drinking water, wastewater and safe water monitoring.

View Products
Photometer 7500 product image
Photometer 7500

The Photometer 7500 is Palintest’s top range photometer covering all major water quality parameters, with more than 80 test methods.

View Products
Turbidity and Ammonia Combined Kit product image
Turbidity and Ammonia Combined Kit

Ideally suited to wastewater professionals, this combined kit includes the Turbimeter Plus and Compact Ammonia Meter or Ammonia Duo.

View Products