TDS - Total Dissolved Solids - are small solids particles in your water supply. Your reverse osmosis system is designed to reduce a high percentage of TDS. You can measure an calculate the exact reduction using the information below.
Need to Know
The membrane (middle cartridge) on your system is responsible for reducing TDS from your water supply. The membrane has an average lifespan of 1-3 years, depending on the use and supply water quality. New filters may produce higher TDS values for several days due to carbon fines being rinsed out. Accurate TDS testing should be done several days of normal osmosis faucet use.
Nice to Know
Total Dissolved Solids (TDS) are any mineral, metal, or salt that can be dissolved in water. These are positive and negatively charged minerals, for example:
(+) Calcium, Magnesium, Potassium, Sodium
(–) Carbonates, Nitrates, Chlorides
Testing TDS Levels
We can calculate this TDS reduction percentage and check the performance of your osmosis system by testing the water with a TDS meter. This value is called the Rejection Percentage Rate.
- Test a sample of normal cold-water from your sink tap. Record the TDS ppm value.
- Test a sample of water from your osmosis faucet. Record the TDS ppm value.
- Calculate:
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