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What Is Reverse Osmosis?

Williams Water Co.
Williams Water Co.
May 30, 2024
What is Reverse Osmosis?

Do you spend more time cleaning your pool than swimming in it? Are you tired of calcium buildup, murky water, and endless chemical treatments? Many pool cleaning companies will tell you to drain your pool and start fresh in situations like this.

However, experience has shown us that this is the wrong approach.

Over the last decade, we’ve saved thousands of gallons of water using our Puripool™ Reverse Osmosis system. It’s cheaper, faster, and more efficient than pool draining. Plus, it preserves 85% of your existing pool water.

If you’re new to the process, keep reading. We’ll tell you how it works and why it is an effective solution.

Why Reverse Osmosis?

We think reverse osmosis is our industry’s “worst-kept” secret. Although this technology has been around for decades, pool cleaning companies have been sluggish in adopting it—either because they don’t know about it or are misinformed about its effectiveness.

That is unfortunate because reverse osmosis is incredibly effective in revitalizing perfectly usable water by eliminating calcium and toxins like dirt, debris, bacteria, and heavy metals. Here’s how the process works.

How Does Reverse Osmosis Work?

Reverse osmosis purifies water using a semi-permeable membrane that dissolves solids and removes contaminants. The process begins by pressurizing the contaminated water and forcing it through the membrane, which traps pollutants while allowing clean water to pass through the other side. Let’s break that process down in simple language by showing you how we work.


We arrive with a mobile filtration system that is entirely self-contained. We make great efforts to minimize disruption, so we do not need to tap into your power supply. You can even continue swimming while we complete the process.


To start, we extend two hoses from our trailer into your pool. One hose pulls water from your pool to a pre-filter that removes contaminants before reaching the reverse osmosis membrane. The other hose returns clean water back into your pool.

Pressurize and Treat

Once filtered, we pressurize the water and guide it through the reverse osmosis membrane. This membrane has tiny pores that trap dissolved solids and contaminants while allowing clean water to pass through.


Finally, the clean water is returned to the pool through the second hose.

Why Choose Reverse Osmosis?

  • It’s faster and more efficient: Our system can filter up to 40,000 gallons of water daily. On average, the process takes between 12-16 hours for the average residential pool
  • Reduces chemical dependency: Fewer dissolved solids and contaminants means money saved on expensive pool chemicals
  • Protects equipment: Reverse osmosis reduces calcium and scale buildup, protecting pool surfaces and equipment while reducing maintenance
  • Eliminates contaminants: Our process removes bacteria, viruses, pesticides, and other contaminants you cannot see with the naked eye
  • Increases clarity: Once treated, your once-murky water will be crisp, clear, and inviting
  • Saves money: In addition to saving the money you would have spent draining your pool, you can also expect to spend less on cleaning services, chemicals, and equipment repair and replacement

Crystal Clear Solutions For Common Pool Problems

Are you tired of murky water, high chemical costs, and endless maintenance? We can help. Whether you need to revitalize your pool water, set up an automation system, or need help with maintenance or installation, we offer a comprehensive line of pool and plumbing services. Contact us today!

License # 1060377
  • Contact
  • (760) 908 8896
  • Monday - Friday: 8 am - 5 pm
  • Saturday by appointment only