
Family-owned · Grand Junction Local
Reverse Osmosis System in Montrose, CO
Reverse osmosis takes out what softeners and carbon leave behind: the dissolved solids in Montrose water.
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What Reverse Osmosis Removes From Montrose Water
A reverse osmosis system in Montrose, CO deals with the part of your water that softening and carbon filtration do not touch: total dissolved solids, which averaged 123 mg/L in Project 7's 2025 finished water and climbed to 183 mg/L in January. Our Grand Junction team comes to you in Montrose for a free water test that measures TDS at your tap, so you can see the number for yourself. Call (970) 773-6439.
Dissolved solids are everything left in the water after it has been filtered clear: calcium and magnesium, sulfate, sodium, silica and trace metals. Project 7 tracks several of them month by month. In 2025 its finished water averaged 48 mg/L sulfate, 9.5 mg/L silica and 0.24 mg/L fluoride. None of these are unusual for Western Slope surface water, and the plant meets every standard. They are simply the minerals a membrane is built to remove.
Most Montrose homes do not need RO for safety, and many are well served by a softener and carbon. Our Montrose water page helps you weigh that before you commit.

Montrose TDS, 2025
A Year of Dissolved Solids in Montrose Water
Finished water from Project 7, the plant that supplies Montrose.
Winter high: 183 mg/L
January 2025 was the peak for total dissolved solids, the same month hardness peaked. Sulfate also hit its high that month at 86 mg/L.
Early summer low: 103 mg/L
May and June readings dropped to 103 mg/L as snowmelt diluted the source water. Even at the low point, the minerals are there.
What RO takes out
A reverse osmosis membrane typically rejects the large majority of dissolved salts and minerals, along with lead, copper and many other contaminants that are too small for any sediment or carbon filter.
What it leaves for you
Water that tastes flat-clean rather than mineral, clear ice, spot-free glassware, and coffee or tea that tastes like the beans or leaves instead of the tap.
How Whole-Home RO Works in a Montrose House
Your Options
RO and the Systems Around It
Not every Montrose home needs whole-home RO. Here is how we decide.
Whole-home reverse osmosis
Every faucet, shower and appliance gets RO water. The most thorough treatment we install. Learn more on our whole-home RO page.
Drinking water RO
If your concern is mostly what you drink and cook with, point-of-use drinking water filtration at the kitchen tap may be enough.
Softening as pretreatment
A water softener protects the membrane from Montrose's hardness and handles scale in the rest of the house at the same time.
Carbon as pretreatment
A whole house filtration stage removes chloramine before it reaches the membrane, and cleans up taste and odor on its own.
How It Works
Planning an RO System in Montrose
Measure TDS and hardness
The free water test at your Montrose home gives us dissolved solids, hardness and chlorine readings, the three numbers that shape an RO design.
Lay out the stages
We decide what goes ahead of the membrane, how big the storage tank should be for your household, and where the reject water will drain.
Install and walk through
We install the full train, test the output TDS in front of you, and explain what each stage does so the system holds no mystery.
What Montrose Homeowners Should Know About RO
Frequently asked questions
What are the total dissolved solids in Montrose water?
Does Montrose water need pretreatment before reverse osmosis?
Will RO remove copper and lead from my Montrose tap?
Is whole-home RO necessary, or is a drinking water system enough?
Does RO remove fluoride?
Why are Montrose dissolved solids highest in January?
Related
Free · No obligation
Get a free water test
Our team will reach out within 24 hours, often the same day, to schedule your free water test. Find out what's really in your water before you spend a dollar on any system.
- We come to you. Free travel for a water test anywhere in our service area.
- We pay for well-water lab testing. Competitors charge an average of $299 for the same tests.
- No obligation. Straight answers, and the right recommendation for your water.
Book your free water test
Name, number and what you'd like checked. A person from Smart Living Water gets back to you.