Reverse Osmosis Systems and Water Usage

Reverse osmosis (RO) systems can be water-intensive. According to the EPA, "a typical RO system sends five gallons of water or more down the drain for every one gallon of treated water it produces!". Some RO systems can even run water into the sewer system constantly. This can increase your indoor usage significantly. 

Water filtration is not needed from a water quality perspective, but may be desired for personal reasons (taste, softness, etc.). SMWD advocates for systems that use exchange tanks that require regular maintenance via a service as opposed to RO systems or a salt based water softener. The latter systems can also put back extra salt into the wastewater, which means SMWD has to treat more salt at our treatment plants and our recycled water quality (TDS, total dissolved solids) suffers.


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1. What is wrong with my toilet?
2. What size toilet flapper do I have?
3. How do I replace a toilet fill valve?
4. How do I fix a leaky or dripping double handled faucet?
5. How do I replace a faucet aerator?
6. How do I fix a leaky bathtub faucet?
7. What is a water pressure regulator?
8. Where is the pressure regulator located?
9. How do I adjust my pressure regulator?
10. How do I reset/program my sprinkler timer (outdoor watering)?
11. Pool / Spa DIY Leak Check
12. Reverse Osmosis Systems and Water Usage
13. What are the negative impacts of traditional salt-based water softening systems?