By Michael Rytting
Updated Mar 24, 2022
Total Dissolved Solids (TDS) comprise the mineral and chemical residues that remain in water after conventional filtration. While most household filters remove suspended particles, ions such as calcium, sodium, potassium, magnesium, and occasionally organic salts persist. These ions influence taste, hardness, and overall water quality.
Although water softeners can reduce some TDS, the most reliable and thorough method is reverse osmosis (RO). RO forces water through a semipermeable membrane, rejecting virtually all dissolved ions and contaminants.
Select an RO unit that meets your household’s volume and purity needs. Look for units with NSF/ANSI certification and reputable brands that offer clear maintenance guidelines.
Before installation, turn off the main water supply that feeds the area where the RO system will be installed to prevent leaks and protect your plumbing.
Follow the manufacturer’s instructions precisely. Most units require a mounting frame, a faucet, and a storage tank. Ensure all fittings are tight and that the system is positioned within the recommended temperature range.
After installation, run the system for the recommended time to flush out air and contaminants. Use a TDS meter or a certified lab test to confirm that the output water meets desired purity levels.
Reverse osmosis systems are now affordable and widely available. While they may have a higher upfront cost, they deliver superior TDS removal compared to simpler filtration options like pitcher filters.
