United States

Total Dissolved Solids (TDS)

Total dissolved solids most commonly refer to the levels of dissolved minerals, like calcium, lead, and iron, in your water. They naturally occur in water after it filters through bedrock and soil. A certain amount of dissolved solids in water is normal, and even beneficial, but problems start when levels of TDS increase beyond what would accumulate naturally.

Effects of dissolved solids in water

Unnatural levels of TDS accumulate in municipal water through agricultural runoff, industrial waste, storm water runoff, sewage contamination, and in snowy areas where salt and other minerals are used as road deicer.

Besides the off-putting appearance, high levels of TDS can create problems around the house and potentially impact your health. The Canadian government regulates a standard of less than 500 mg/L – beyond that level, dissolved solids can create plumbing problems, like corroded pipes, as well as water appliance malfunction and bitter or bad-tasting water.

Too much or not enough? How to look for TDS in your water

Total dissolved solids can appear as discolouration in water, or you may notice these other symptoms:

  • Cloudy, turbid appearance.
  • Salty, bitter, or metallic taste.
  • Corroded pipes or fixtures.
  • Shorter appliance lifespan.

Treating total dissolved solids with Culligan reverse osmosis filtration

While you can chemically treat TDS in your water with different methods of filtration, reverse osmosis is generally the most efficient and effective way to remove TDS, and their negative effects, from your water.

Our Reverse Osmosis Drinking Water Systems, for example, are point-of-use, third-party-certified filtration systems that reduce total dissolved solids and leave your water tasting fresher. If you’re looking to reduce total dissolved solids throughout your home, consider our Culligan whole-house water filtration solutions

Culligan Satisfaction Guarantee

If you are dissatisfied with your Culligan product for any reason within 30 days of your purchase, Culligan will remove the product and refund the purchase price.

Global text/links:
Zip/postal code text: Enter your postal code
Find button text: Find My Culligan Man
Dealer locator link: Dealer Results
Contact button text: Contact Us Today
Search field text: Search Culligan
Search button text: GO
Search results link: /ca/search-results
Home/Office/General Contact Form Side Panel:

Contact your local water expert

Your local Culligan Man
can make an expert
recommendation about
which product is right for you.

Find a
Culligan Man near you.

Commercial/Industrial Contact Form Side Panel:

Contact Culligan

Schedule a free consultation today.

Our commercial water treatment professionals are ready to hear from you.

Contact Culligan

Home/General Side Panel:

Need your

water tested?

Schedule a FREE
In-Home Water Test for
Your Specific Solution.

We'll find a
Culligan Man near you.


Contact Culligan

Office Side Panel:

Contact your local water expert

Your local Culligan Man can recommend the right solutions for your office.


Contact Culligan

Commercial Side Panel:

Schedule a free consultation

Our commercial water treatment professionals are ready to hear from you.


Contact Culligan

Industrial Side Panel:

Scheule a free consultation

Our industrial water treatment professionals are ready to hear from you.


Contact Culligan