The quality of water you consume directly impacts your overall health. For this reason, it’s important to ensure any water you drink is clean and free from germs. There are several water filter options on the market right now. At the same time, some are expensive and may require you to set up specific skills. There are still some cheap options like the refrigerator filters for sale at Discount Water Filters. So you have no excuse for not taking the extra steps to keep your water clean and safe. 

Meanwhile, here are some of the cheapest ways to filter your water. 

Solar Distillation

Solar distillation is one of the cheapest ways to purify water. This method can purify either salty, muddy, or any other form of undrinkable water. Solar still can come in any form. It could be a highly designed device or a simple piece of shaped plastic. The effectiveness of this method of purification makes it unique. 

For this method, sunlight is the key ingredient. The solar still allows sunlight to shine through a clear panel into the impure water. This, in turn, causes the water to heap up, evaporate, and then condense on the bottom part of the panel. The condensed water vapor is then channeled and collected in a container. 


Chlorination is one of the most reliable and oldest water treatment methods available today. The method depends on using a chemical substance called Chlorine to kill off microbes present in the water. Chlorine also keeps water safe from new contaminations even long after being added to a water supply. Chlorination is a safe water purification method mainly employed by industries and large communities. 

Slow Sand Filtration

This water filtration system is perfect for community water sources and private homes. A slow sand filtration system consists of pre-filters, water storage tanks, an aerator, disinfection stages, slow sand filters, and filtered water storage tanks. 

Ideally, the number of filters and filter types utilized in a particular slow sand filtration system will depend on the source water quality. 

Solar Sterilization

Another way you can filter and purify your water cheaply is by pouring the water into a plastic bottle and leaving it in the sun for hours. 

Research has shown that heat and UV radiation can kill microbes responsible for diarrhea and other waterborne illnesses. So by exposing your water to these conditions, you will be killing off any harmful micrograms present in it. 

If you don’t want to use water bottles and are looking for something more standardized, you can opt-in for solar disinfection devices. Some solar indicators can measure light exposure and signal when the germs are dead. You’ll not know this when using an ordinary water bottle. 

Also, the amount of sun exposure that a bottle or solar disinfection device needs depends on the amount of sunlight available at that moment. 

Ceramic Filters

With ceramic clay, plastic buckets and sawdust, you can create a water filter system capable of catching dirt and microbes. Some also mix their clay with materials like rice husks or sawdust to give it a classic look. Then, they make it into a flowerpot shape and heat it in a kiln. As the rice husks or sawdust burn away, it leaves tiny pores in the ceramic. Water filters through these holes. 

For years, organizations have been using this method to filter water in developing communities. 

Reverse Osmosis Water Filter

This is a straightforward way of filtering water. The reverse osmosis water filter system removes dissolved inorganic solids like; calcium and magnesium ions from water by pumping them through a semipermeable membrane (filters). This is usually done using a high amount of pressure.

There’s no reason not to choose this system because it lasts long and produces great-tasting water. It’s also very affordable.

Bone Char Filtration

Although several water filters are available on the market, you cannot use them all to remove heavy metals. 

It may sound strange to you, but you can also use charred and crushed animal bones to remove heavy metals or other toxins from the water. 

Heavy metals such as uranium (U) in the drinking water have been linked to kidney inflammation (nephritis). In people suffering from this condition, their kidneys no longer perform the function of removing proteins from the urine stream; This will, in turn, lead to toxins getting passed into the bloodstream. 

Overexposure to arsenic can also result in lung cancer, skin cancer, bladder, gangrene, high blood pressure, diabetes, and others. 

Inline And Drop-In Water Filters

These water filters sit directly on the waterline, and the water passes through it before reaching the tap or appliance. Due to its small size, it’s commonly used in households because it’s perfect for under-sink installations. They also created Drop-in filters to fit inside of a water filter housing. Additionally, Inline filters can reduce some common problems with municipal water, like taste or odor.  


The main idea behind mechanical water filters is a barrier to physically remove sediment, dirt, or any particles in water. 

Mechanical filtration is usually rated in micron— this is a measure of how effective the filters are in terms of the size of the particles they can remove. 

A Mechanical filter could be a ceramic filter with a highly complex pore structure for filtration of pathogenic organisms or a basic mesh capable of filtering out large debris. 


Absorption is often carried out by carbon. The primary reason it can do so is that it has a large internal surface area that can trap chemical impurities like Chlorine. Some of the substances you can use to make carbon for water filters include wood and coconut shells. Coconut shell carbon filters are reported to be the most effective of them all.