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Big Blue Water Filters vs. Reverse Osmosis Systems: Which Will Transform Your Water Experience?

June 18, 2024 4 min read

When it comes to ensuring that the water in your home is safe, clean, and healthy, choosing the right water filtration system is crucial.

Reverse Osmosis Filter Stages

Among the most popular options are Big Blue water filters and reverse osmosis (RO) systems. But which one is more effective? Let’s dive into a detailed comparison to help you make an informed decision.

Demonstrating Big Blue Water Filter Features

Understanding Big Blue Water Filters

What Are Big Blue Water Filters?

Big Blue water filters are large-capacity filtration systems designed to remove a wide range of contaminants from your water supply. These filters are typically installed at the point of entry, meaning they treat all the water coming into your home, making them a popular choice for whole-house filtration.

Sediment and Carbon Filter are suitable to all kinds of Big Blue Whole House Filter

How Do Big Blue Water Filters Work?

Big Blue water filters use replaceable filter cartridges that can target specific contaminants. These cartridges can include sediment filters, carbon filters, and specialty filters designed to remove iron, chlorine, and other impurities. The large size of these filters allows for a higher flow rate and longer filter life compared to standard filters.

Understanding Reverse Osmosis Systems

What Are Reverse Osmosis Systems?

Reverse osmosis (RO) systems are highly effective water purification systems that use a multi-stage process to remove impurities from water. These systems are often installed under the sink and are known for producing exceptionally clean drinking water.


How Do Reverse Osmosis Systems Work?

RO systems use a semi-permeable membrane to remove contaminants from water. The process involves forcing water through this membrane, leaving impurities behind. The result is high-quality water that is free from a wide range of contaminants, including dissolved salts, bacteria, and chemicals.

Key Differences Between Big Blue Water Filters and RO Systems

Filtration Capabilities

Big Blue water filters and RO systems have different filtration capabilities. Big Blue filters are versatile and can target specific contaminants based on the type of filter cartridge used. They are excellent for removing sediment, chlorine, and certain chemicals.

RO systems, on the other hand, offer comprehensive filtration by removing up to 99% of contaminants, including dissolved salts, heavy metals, bacteria, and viruses. This makes RO systems ideal for producing high-purity drinking water.

Installation and Maintenance

Big Blue water filters are typically installed at the main water line, providing filtered water to the entire house. Installation is straightforward but may require a professional if you are not familiar with plumbing. Maintenance involves replacing the filter cartridges every 6-12 months, depending on water quality and usage.

RO systems are usually installed under the sink and are designed to provide filtered water to a specific tap. Installation can be a bit more complex due to the need for a dedicated faucet and drain connection. Maintenance includes replacing the pre-filters, RO membrane, and post-filters periodically.

Cost Considerations

Upfront and Ongoing Costs

When comparing costs, both systems have their own set of expenses. Big Blue water filters have a lower upfront cost and the replacement filter cartridges are relatively inexpensive. However, since these filters serve the entire house, the cost of cartridges can add up over time.

RO systems have a higher upfront cost due to the complexity of the system and installation. The replacement filters and membranes are also more expensive. However, the high level of filtration they provide can be worth the investment, especially if you are concerned about specific contaminants in your water.

Water Waste and Efficiency

One of the main drawbacks of RO systems is water waste. For every gallon of purified water produced, an RO system can waste up to 3-4 gallons of water. This can be a significant consideration in areas with water scarcity or if you are environmentally conscious.

Big Blue water filters, by contrast, do not produce any wastewater. They filter water as it passes through the system, making them more efficient in terms of water usage.

Personal Anecdote: My Journey to Cleaner Water

A few years ago, one of our clients moved to a new home in an area with notoriously hard water. After doing some research, they decided to install a Big Blue water filter at the main water line. The improvement in water quality was immediate – no more sediment in the bathtub and the water tasted better too. However, they noticed that the drinking water still had a slight metallic taste, which led them to explore further filtration options.

They ended up installing an RO system under the kitchen sink. The combination of the Big Blue filter for general use and the RO system for drinking water turned out to be the perfect solution for my home. Now, they enjoy crystal-clear, great-tasting water straight from the tap, and the peace of mind knowing that my family is drinking the cleanest water possible.

Which System Is Right for You?

Choosing Based on Your Needs

The choice between a Big Blue water filter and an RO system ultimately depends on your specific needs and preferences. If you are looking for a whole-house solution to improve overall water quality and reduce sediment, chlorine, and certain chemicals, a Big Blue water filter is an excellent choice.

However, if your primary concern is having the purest drinking water possible, free from a wide range of contaminants, an RO system is the way to go. In some cases, a combination of both systems may provide the best of both worlds, ensuring that all the water in your home is treated while also having ultra-pure drinking water at your fingertips.


Both Big Blue water filters and reverse osmosis systems offer significant benefits, and understanding their differences can help you make an informed decision. Consider your specific water quality issues, budget, and maintenance preferences when choosing the best system for your home. Whether you opt for the versatility of a Big Blue filter or the high-purity filtration of an RO system, investing in a quality water filtration system is a step towards better health and peace of mind.

Remember: Clean water is not just a luxury; it’s a necessity for a healthy life. Make the choice that best fits your home and family’s needs, and enjoy the many benefits of cleaner, safer water.