As concerns about the quality of tap water in homes continue to rise, more people are considering investing in whole house water filtration systems.
These filtration systems are designed to remove various contaminants and impurities from the water that enters the home, providing clean, safe, and healthy drinking and bathing water. There are different types of whole house water filtration systems available, each with its benefits depending on the unique needs of a customer’s home.
For plumbers not used to selling water filtration systems, here’s a crash course on some of the more advanced water filtration systems and their benefits.
Reverse osmosis
Reverse osmosis (RO) is one of the most commonly used technologies for water filtration, especially in commercial and industrial settings. RO filtration uses a semipermeable membrane to remove impurities and contaminants, including microorganisms, chemicals, and minerals. When water passes through the membrane, the impurities are left behind, resulting in clean drinking and bathing water.
RO systems are highly effective at removing impurities and offer excellent water quality. They can remove up to 99% of contaminants, including heavy metals, bacteria, viruses, and chemicals. This makes them ideal for areas with high levels of contamination.
The benefits of using RO systems include a high degree of filtration efficiency, making them suitable for households that prioritize water purity. They can remove dissolved solids, such as sodium, which can make drinking water unpalatable. RO systems also improve the taste, odor, and clarity of the water. However, one of the significant drawbacks of RO systems is that they can be costly to install and maintain. They require regular filter replacements and can produce wastewater during the filtration process.
Activated carbon filters
Activated carbon filtration systems use a bed of activated carbon to remove impurities from the water. Activated carbon is highly porous and has a large surface area. It adsorbs contaminants, such as chemicals, pesticides, and chlorine, as the water passes through the carbon bed.
Carbon filters come in multiple types, including granular activated carbon (GAC), powdered activated carbon, and block filters. GAC filters are the most common type found in whole house water filtration systems. They are highly efficient in removing organic compounds and improving the taste and odor of the water.
The primary advantage of activated carbon filters is that they are effective in removing specific contaminants like chlorine and volatile organic compounds (VOCs). They are also often more affordable compared to other filtration technologies. However, carbon filters only provide moderate filtration and may not be sufficient for areas with high levels of contamination. It is advisable to use carbon filters in combination with other filters to achieve comprehensive water purification.
Ultraviolet (UV) water purifiers
UV water purifiers are equipment that sterilizes the water by exposing it to UV radiation. Microorganisms like bacteria, viruses, and other pathogens are destroyed in the process, ensuring pure drinking and bathing water. UV water purifiers work effectively to eliminate harmful microorganisms from the water, making the water safe from bacterial and viral infections.
The benefits of using UV water purifiers are that they are simple to use and require minimal maintenance. Unlike other filtration systems, UV purifiers do not require filter replacements or chemical additives. They are also highly effective in removing bacteria, viruses, and other pathogens that can cause illnesses.
However, UV purifiers are unable to remove impurities like chemicals or minerals from the water. Therefore, they are often used in conjunction with other filtration methods, such as activated carbon filters, to achieve comprehensive water purification.
Ion exchange
Ion exchange filtration systems work by exchanging ions in the water for ions of the same charge on a resin bed. This process is particularly effective in removing minerals like calcium and magnesium, which cause hard water. The resin bed captures the hardness-causing ions, replacing them with sodium or potassium ions found in the resin.
Ion exchange filtration is also suitable for removing other contaminants like heavy metals, but it has limited effectiveness against microorganisms. These systems are commonly found in water softeners, which are designed to treat hard water.
The main benefit of using ion exchange filtration is that it results in softer water, which is gentler on pipes and appliances. It also reduces the need for abrasive cleaning products and can help preserve the lifespan of household appliances, such as dishwashers and washing machines. However, it is not the most efficient method of removing other types of contaminants, so it is often used in combination with other filtration methods.
Ceramic filters
Ceramic filters are made from natural materials like clay, diatomaceous earth, and activated carbon. They function by trapping impurities as the water passes through tiny pores in the ceramic, leaving clean water behind. Ceramic filters are often used in conjunction with other filtration methods to filter out sediment and other particles.
The advantages of ceramic filters include affordability and the fact that they are easy to clean and maintain. They are also very effective at removing sediment, so they make an ideal pre-filter in a multi-stage water filtration system. Ceramic filters can also improve the taste and odor of the water by reducing chlorine and other impurities.
However, ceramic filters have limitations when it comes to removing dissolved impurities like chemicals, metals, or bacteria. Therefore, they are often used in combination with other filtration technologies, such as activated carbon filters or UV purifiers, to achieve comprehensive water purification.
A final word
Whole house water filtration systems offer many benefits, including better-tasting and safer drinking water, more efficient household appliances, and improved skin and hair quality. Each filtration system has its pros and cons, so it is essential to assess the unique needs of your customers' households before selecting the best system for them. Ultimately, investing in a whole house water filtration system is an investment in better health and quality of life for your customers.
About the Author
Anthony Pacilla is a registered master plumber for McVehil Plumbing in Washington, Pennsylvania. He has over two decades of experience in the plumbing and HVAC trades and has a bachelor’s in business and economics from Thiel College.
