Are you considering a ceramic water filter for your home?
Ceramic filters are an excellent option. They’re easy to use and maintain, and they offer great tasting water that’s free of contaminants like lead, chlorine, mercury, asbestos and more. Plus, they last up to five years!
You can be confident knowing your family is drinking clean filtered water with every glass! And ceramic filters are the perfect choice if you want something simple yet effective. With no moving parts or electricity required, these filters require very little maintenance while still providing high-quality results. They also last much longer than other filters, making them a more economical choice in the long run. There’s nothing else quite like them on the market today.
In this blog post, we will discuss the benefits of using ceramic water filters and how they can improve your drinking water quality.
What Is a Ceramic Water Filter
If you’re looking for an affordable way to filter your water, then ceramic filters are perfect. They have been around since the early 20th century and are widely used today because of their effective and versatile filtration properties.
They can be used to remove contaminants like bacteria, sediment and turbidity from drinking water. With supplements like activated carbon, they are used to remove chlorine, taste, and VOCs. Some ceramic filters have ion exchange resins that allow them to remove heavy metals like lead and mercury.
Common uses of ceramic filters
Ceramic filters come in a variety of shapes and sizes, with tiny pores that allow for excellent filtration of bacteria, chemicals, and pesticides. They are most commonly used to remove sediment, suspended solids, and turbidity from drinking water, especially well water. They can also be a great choice for those who want to remove bacteria from their water.
Ceramic filters used to remove bacterial often have silver compounds added to them. Silver is a biocide that inhibits microbial growth and enhances the removal of bacteria.
Some ceramic filters include a filter candle, which contains activated carbon. The carbon is added to remove contaminants like chlorine, disinfection byproducts, trihalomethanes (THMs), and taste.
What are they made of
Ceramic water filters are generally made from fine silica powder that is sintered (i.e., fired at high temperatures) to make a hard cartridge. This silica powder is also known as diatomaceous earth, or DE.
This man-made ceramic has very small pores that make it an exceptional filter. It is also very hard and resistant to breaking, which gives it a very long service life. These properties also allow it to be cleaned and reused many times before it must be replaced.
Some ceramic filters are made with silver compounds added. The silver acts as an anti-bacterial agent and helps prevent bacteria from growing inside the ceramic media.
In some cases, granular activated carbon is added to the DE to add the benefits of carbon treatment to the process. This works well for things like chlorine, taste, odor, and VOCs.
How Do Ceramic Water Filters Work
Ceramic filters have tiny pores that allow them to remove small contaminants like bacteria and turbidity from your drinking water. The pore size is controlled by the type of material used to produce the ceramic disk or filter element.
Diatomaceous earth powder is the most common material used to produce a ceramic filter. The powder is sintered by heating it to very high temperatures. This process produces a very hard and smooth ceramic material with tiny holes called pores.
Water passes through the ceramic element while the impurities are retained by the millions of tiny pores. In a typical ceramic filter, the pore size is 0.5 microns. This is small enough to remove most suspended solids and turbidity from water. It also filters out bacteria and cysts.
Inside the filter, the tiny particles of silica create a torturous path of sharp angles for the water and contaminants to flow through. As the particles in the water move through this maze, they are trapped on the exterior surface of the DE. Water passes through this media, leaving behind the solids and bacteria.
Ceramic filers have a very small pore size. A common filter size is 0.5 microns. Some ceramic filters have even smaller micron sizes.
The material used to produce the filter is critical to the pore size of the finished product. Usually, DE powder is used to make the ceramic cartridges because it is very fine and produces a small and consistent pore size.
Ceramic filter candle
The ceramic filter is a natural way to get rid of bacteria and other contaminants in your drinking water. The filter cartridge, often referred as a ceramic filter candle, is the porous material that removes contaminants from your water. Another configuration used with ceramic filter is the pot type.
Filter candles allow sturdy metal and plastic receptacles to be used, which decreases the likelihood of a sanitary failure. Since their filter area is independent from attachment joint size (minimizing leaking), more expensive gaskets can easily last longer than other geometries. They’re also easier for cleaning because it’s in one place rather than on all four sides like with replaceable filters
Ceramic filter with activated carbon
Ceramic water filters can also be combined with activated carbon to provide additional benefits. Activated carbon is very effective in removing chlorine, taste and odor from water. It also helps reduce VOCs (volatile organic compounds).
The activated carbon is added to the DE powder and is incorporated in the final ceramic element during manufacturing. This combination of ceramic with activated results in a very effective particle filter that can remove chlorine, VOCs, pesticides, herbicides, and PFAS.
Ceramic filter with ion exchange
Ceramic filters can be produced with ion exchange resin in them. This allows them to remove heavy metals from the water. Ceramic filters with IX can treat water contaminated with:
The ion exchange resin is a synthetic polymer that has been specifically designed for use in water treatment. It is added to the ceramic filter element during manufacturing.
What Contaminants Do Ceramic Filters Remove
Ceramic water filters can remove a variety of contaminants, including:
- suspended solids (TSS): The porous surface of the ceramic filter effectively traps particulate matter including dirt, debris, and rust.
- turbidity: Turbidity is actually very tiny, suspended particles that create a cloudy color in the water. The fine pore size of ceramic filters effectively removes this problem.
- bacteria: The ceramic filter is an excellent way to remove bacteria from your water. Its pores are so small, it prevents passage of E. coli or salmonella. They also remove cysts such as Cryptosporidium and Giardia that can’t pass through the small pores.
If the filter material is impregnated with activated carbon, the ceramic filter can remove:
- THMs and disinfectant byproducts
- taste and odor
Special ceramic filters that contain ion exchange resins, can remove:
What Contaminants Can’t Ceramic Filters Remove
Ceramic water filters are essentially just very fine particle filters. They are not able to remove:
- dissolved solids (TDS): Despite their ability to remove suspended solids from water, ceramic filters are not able to remove dissolved solids. These compounds, known as TDS, must be removed with another technology such as reverse osmosis.
- viruses: Ceramic filters have a pore size of approximately 0.5 microns. Viruses are much smaller, around 0.02 microns in size and so they can’t be removed by the ceramic filter media.
- fluoride: Fluoride is one of those contaminants that requires a special treatment process to remove it from water. Ceramic filters do not contain any type of fluoride removal media such as activated alumina or bone char.
- hardness: Hardness is comprised of calcium and magnesium ions. These minerals pass through the filter material and are not removed. If you have a problem with hardness, consider using a water softener or reverse osmosis filter.
Factors to Consider with Ceramic Filters
When considering the use of ceramic water filters, there are a few factors that you need to consider.
Maximum flow rate
An important consideration with ceramic filters is the flow rate it can handle. A good rule of thumb is to have a flow rate that’s at least twice as fast as your typical faucet. So, if you usually have water flowing out of your faucet at two gallons per minute, then you need a filter with a flow rate of at least four gallons per minute. This ensures you won’t have to wait around for your water to filter through the ceramic media.
Cost of ceramic filters
The cost of your ceramic filter will vary depending on the configuration, the flow capacity, and if the ceramic is impregnated with activated carbon or ion exchange resin.
A point-of-use (POU) ceramic filter system will cost between $85 and $200. A whole-house, or point-of-entry (POE) ceramic filter system will cost between $200 and $2,000.
Ceramic filters with activated carbon typically cost 20 to 40% more than basic filters. You can expect to pay between $100 and $400 for a POU ceramic filter and $270 to $3,000 for a POE ceramic filter.
Life of ceramic filters
Ceramic water filter cartridges should be replaced every 12 months or sooner depending on the amount of use and water quality. A good time to replace them is when the flow rate starts decreasing significantly. This can happen before and after the one-year mark so keep an eye on it.
A high-quality ceramic filter can last as long as 2 years. Some can be used for as much as 5 years.
If your ceramic filter contains carbon, you will have to change it more frequently because the activated carbon will eventually become spent. This means it has no more adsorption capacity and is unable to remove contaminants. Most ceramic filters with activated carbon need to be replaced every 3 to 6 months. Check the manufacturer’s recommendations.
Maintenance is not difficult but it’s important that you do it regularly in order to keep your ceramic filter working well and avoid problems with bacteria or algae growing inside the housing unit. If you allow the ceramic filter to become plugged, you may not be able to clean it and you’ll have to purchase a new one.
Configuration of ceramic filters
There are many different types of ceramic filtration systems. Some can be gravity-fed, under sink or countertop while others are large enough to be used as a whole house filter.
- Under-sink filter: This is the most popular type of ceramic filter. It installs under your sink and has a small footprint. The advantage to this type of system is that it’s easy to maintain because all of the filters are in one place.
- Countertop filter: This style of filter sits on your countertop and requires a water line be attached to it in order to fill the unit with water. Just like an under-sink filter, you have everything in one place, so maintenance is easy.
- Gravity-fed filter: This type of system has a tank that sits on top of your countertop or kitchen table and must be filled manually. Because it’s gravity fed, there isn’t any electricity required making it a good choice for people who are off the grid or live in an area where power is unreliable.
- Whole-house filter: This type of system is installed on the main water line coming into your house and filters all of the water that enters your home. It’s a large unit and typically requires professional installation.
Ceramic filters require very little maintenance. In most cases, all you have to do is flush the filter every month or two to remove any sediment that may have built up. You can also brush off the ceramic media if it becomes dirty.
If your filter contains activated carbon, you will need to replace the carbon every few months. This is because the activated carbon will become spent and will no longer be able to adsorb contaminants from the water.
You can also soak your ceramic filter in a solution of hydrogen peroxide or vinegar to help kill bacteria and algae that may have grown inside the housing unit. This is especially important if you live in a humid area where there is plenty of moisture for mold and mild
Cleaning ceramic filters
To clean a ceramic filter, start by flushing out any sediment that may have built up on the surface. Then, fill a bucket with water and add some vinegar (or hydrogen peroxide) to the water. Soak your filter housing in this solution for at least 20 minutes to kill any bacteria that may be growing inside of it. Once you’re done soaking your filter, remove it from the solution and rinse it off
If you allow your ceramic filter to become plugged, you may not be able to clean it and you’ll have to purchase a new one. To avoid this, it’s important that you keep up with the maintenance requirements and clean the filter regularly.
Replacing ceramic filters
If your ceramic filter becomes plugged or you can’t clean it, you’ll need to replace it. This is a fairly easy process and most filters come with instructions on how to do it.
Replacing the activated carbon in a filter is also a simple process. Most carbon filters have a service life of about six months, so it’s important to keep track of when you installed it. When it’s time to replace the carbon, just remove the old one and replace it with a new one.
It’s important to keep up with the maintenance of your ceramic filter in order to ensure that you’re getting the best possible performance from it. By following these simple steps, you can enjoy clean, safe drinking water for years to come.
Pros and Cons of Ceramic Water Filters
Ceramic water filters are an excellent choice for people who want to filter their water without removing all of the beneficial minerals. They’re also a good option if you live in an area where chlorine and other chemicals are used to treat the drinking water.
The primary benefits of using a ceramic water filter are:
- Very effective elimination of bacteria and protozoa in water
- Extremely simple to install and use
- For users, there is a documented decrease in diarrheal illness incidence.
- If the filter is not broken, it will last a long time.
- A very low one-time cost
The main disadvantages of using a ceramic water filter are:
- Do not remove viruses
- Requires silver additive to prevent growth of bacteria in media
- Filters may break with time and need spare parts
- For non-turbid water, a low flow rate of 1-3 liters per hour is the maximum
- Filters and outlets must be cleaned on a regular basis, especially after filtering turbid water
Can ceramic water filters remove fluoride?
A basic ceramic water filter does not remove fluoride. However, ceramic filters that are impregnated with ion exchange resin can remove fluoride
What is difference between ceramic filters and reverse osmosis?
A ceramic filter is a particle filter that is made of a special ceramic material It can remove suspended particles, bacteria, and turbidity. Ceramic filters do not remove dissolved ions, minerals, or dissolved solids from water. Reverse osmosis filters use a special membrane to filter out minerals, dissolved ions, VOCs, PFAS, and a lot of other contaminants.
Final Take on Ceramic Water Filters
Ceramic water filters are an affordable and effective way to remove many contaminants from your water. They are easy to maintain and have a long lifespan. While they cannot remove all contaminants like hardness or viruses, they are very effective for removing sediment, bacteria, and even chlorine if supplemented with activated carbon.
If you are looking for an affordable and reliable way to improve the quality of your water, a ceramic filter should be at the top of your list.