Clean water being poured into a clear glass

Technology used in hard water purification systems is being used to provide fresh drinking water to areas of the world where fresh water sources are scarce. Even though the Earth is mostly covered in water, 97.5% of it is undrinkable due to the salt content. The reason why it is undrinkable is because a human’s kidney is unable to expel that much salt. Salts drain water from the body and cause dehydration. The same technology in the soft water systems used in your household are being used on a grander scale to create drinkable water from sea water.

What is Reverse Osmosis?

An example of this type of technology is the soft water systems that remove the minerals in hard water through reverse osmosis. Reverse osmosis is a process by which a solvent passes through a porous membrane in the direction opposite to that for a natural osmosis when subjected to a hydrostatic pressure greater than osmotic pressure. Simply, it uses pressure to remove impurities through several porous membranes. In households, these systems remove minerals such as calcium and magnesium.

What is Desalination?

Water desalination is the process of removing the salts from sea water to create potable water. This is water that is safe to drink. Saline is defined as dissolved salts. In fresh water there is less than 1,000 ppm (parts per million) of salt. In the ocean the amount of salt is 35,000 ppm. The Earth’s atmosphere has its own desalination system. This is done through solar desalination also known as the water cycle. This is done through evaporation, condensation, and precipitation.

How are These Processes Used?

There are large industrial plants that have huge reverse osmosis systems that are capable of desalinating millions of gallons of water per day all over the world. Although these plants are capable of creating drinkable water, the cost per gallon is more than pumping and treating fresh water. These plants are being built in areas where there isn’t a steady supply of freshwater and along the coasts for future planning. There are many areas that have a limited supply of fresh water or have times of the year of extreme drought. Desalination plants in Israel provide 20% of their water. In San Marcos, TX, desalination plants are used to create chemically compatible water to the Edwards Aquifer.  

What Happens to the Salt?

Once the desalination process has been completed, there is a bunch of salty brine that is leftover. This is usually just dumped back into the ocean and could cause pollution. Recent research at MIT has been able to put the brine through a nanofiltration system and convert it into chemicals, such as sodium hydroxide, that are in turn used to desalinate more water. These chemicals are needed to operate the desalination plant. Essentially, the processes of desalinating water could have very little waste in the future and save the cost of having to pump brine back into the ocean.

The Importance of Water Treatment Systems

The hard water treatment systems that are used in households use the same technology as those used to create drinkable water from ocean water that would be unsafe without those systems. These systems could one day be the only system the entire Earth relies on for clean water. Technology is always advancing in all areas of life from electronics to the water we drink.

Interested in learning more about water conditioning systems? Contact Clear Water of San Marcos, a local company that provides water softening in San Marcos, TX.

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We know running a business can be difficult, and it can be even more stressful to want to provide the best for your employees. Clean and good water should be a priority for any business owner. Finding the right solution is daunting, but that’s what we’re here for! Today we’ll be discussing several options depending on your circumstances.

No-Salt Conditioner®

Scale build-up occurs in water handling equipment when there’s hard water present. This includes water fountains, sink faucets and much more, leading to expensive repairs and replacements, exorbitant energy costs, and blocked water flow. Now you can keep your water handling equipment in pristine condition and running smoothly with the EasyWater No-Salt Conditioner. The EasyWater No-Salt Conditioner eliminates hard water build-up without minimal to no maintenance, salt or chemicals.


If you’re looking for a commercial reverse osmosis system, look no further! SmartGuard RO’s integrated scale control technology is the only RO system on the market that operates efficiently without the need for a softener or chemical pre-treatment. SmartGuard RO has a plethora of customizable options for your needs, including RO, RO and remineralization, RO and deionization and much more. The thoughtful design allows for simple monitoring and maintenance. It also includes an automatic bypass option preventing you from running out of filtered water.

RevitaLife Pro®

If your company demands high purity or quality drinking water, reverse osmosis is the option for you. RevitaLife Pro delivers filtered and finished water with minerals for whatever you may need, as well as a corrected pH. This ensures you’ll get the water quality you need while keeping your water handling equipment clean and pristine.

Bacteria Shield®

Problems such as pipeline breaks, accidental sewage overflows and other incidents at work can increase the risk of contamination among you and your employees. This sort of microbiological fouling often comes with safety issues. Luckily, our Bacteria Shield offers UV disinfection, ozone disinfection, hydrogen peroxide disinfection and much more!

Iron Shield®

After years of use, iron deposits can begin to build up water-using equipment. If not properly taken care of, it will eventually turn into costly maintenance and early equipment death. Iron and manganese also create discolored water and rust-colored stains on plumbing fixtures, concrete walkways, driveways and much more. Iron Shield will protect your plumbing and keep your business in the best looking condition by oxidizing iron, manganese and hydrogen sulfide inside your tank, before they start causing problems.

Acid Shield® – PH Neutralizer

Copper and steel plumbing are easily corroded by acidic water, resulting in damage to plumbing fixtures, piping and valves. Eventually, your water-using equipment such as boilers and dish machines may prematurely fail. With Acid Shield®, a natural calcium compound and low-maintenance process to raise the pH of acidic water. Acid Shield® also protects your plumbing against pinhole leaks and disposes of blue-green staining.

Now that you know a little more about commercial solutions available to you, be sure to call Clear Water of San Marcos today at 512-757-1731, for an inspection to see which works best for you! We’ll work with you to make sure you get the water system you need, at an affordable price!

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At Clear Water of San Marcos we don’t just serve homes when installing water filtration systems, we also service commercial facilities. We understand that keeping clean water in your business is a top priority for both employee and patron health. We have several options when it comes to commercial water filtration systems, but today we will be discussing the benefits of a reverse osmosis water filter.

A reverse osmosis filtration system is great for producing clean drinking water. Reverse osmosis may seem complicated but it is actually a fairly simple process and understanding how it works should eliminate the mystery and confusion many feel toward reverse osmosis systems.

Reverse osmosis is a process in which dissolved inorganic solids are removed from a solution, such as water. This process occurs when water pressure pushes the tap water through a semi permeable membrane. The thin membrane allows only water to pass through and leaves behind any impurities or contaminates. The chart below is borrowed from ESP Water Products and very easily demonstrates this process.

The reverse osmosis water filtration systems have many benefits. They improve taste, odor and appearance or water as well as removing all pollutants. It consumes no extra energy because it relies on natural forces and the normal use of water pressure and flow. It does not collect pollutants but instead flushes them out of the system and down the drain, making it extremely easy to keep clean. It is also fairly easy to create, giving it a low production cost, in turn making it more affordable for anyone to purchase.

The reverse osmosis membrane will remove any and all particles which are larger than .001 microns. This includes the majority of sulfate, mercury, phosphate, lead, arsenic, fluoride, barium, chloride and many others. While it does filter out some non-harmful particles such as calcium, iron and zinc, the benefit of the removal of dangerous substances far outweighs the loss of these which can still be gained from proper diet.

There are a few basic components of al reverse osmosis systems.

A cold water line valve that fits onto the cold water supply line and has a tube that attaches to the inlet side of the reverse osmosis pre filter which send water to the reverse osmosis system.

The pre-filter mentioned above is the first contact the cold water meets. It is mostly a sediment filter used to remove silt, dirt and other sediment. There can be carbon filters which remove chlorine which can damage the filtering membrane.

The reverse osmosis membrane is the most important component of the filtration system. It is most commonly a wound spiral which can be either a cellulose tri-acetate which is chlorine tolerant, or a thin film membrane composite/material which is not chlorine tolerant.

The post filter is usually a carbon filter that filters the remaining substances before it goes to the reverse osmosis faucet. Any remaining tastes and odors are removed with this filter.

The automatic shut off valve is used to conserve water by stopping and further water from entering the membrane once the storage tank is full. Once water from the storage tank drains, the pressure in the tank drops, opening the shut off valve and allowing water to flow as well as letting the system drain the waste-water.

A check valve is located in the outlet end of the reverse osmosis membrane which prevents backflow from the storage tanks which could potentially rupture the membrane.

The flow restrictor regulates the flow by maintaining pressure on the inlet side of the membrane. Without it, very little drinking water would be produced because all incoming water would take the path of least resistance and flow down the drain line.

The storage tank holds water after it has been filtered and a bladder inside the tank keeps water pressurized when the tank is full.

The unit has its own faucet which is usually installed on the kitchen sink and a drain line runs from the outlet end of the reverse osmosis membrane to dispose of the filtered out impurities.

Now that you know more about the reverse osmosis system, we hope your interest is peaked. We have a state of the art system with optional special features, a one-of-a-kind on the market. If you want more information, call a representative at Clear Water San Marcos and let us know what we can help you with.

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