Written by: Gene Fitzgerald // Last Updated: Aug 28, 2023
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A sediment water filter can remove sediments and other particles from your home’s water to improve its overall quality and prevent damaging of your water-using appliances and plumbing system.
While there are many filters on the market, it’s possible to build your own homemade sediment water filter if you prefer.
This guide will explain how. Be aware, this isn’t a purely DIY process, as it involves taking standard-sized filter housings and combining them with the appropriate filter cartridges. What you’re really doing is creating your own filter setup. However, as you’ll learn, doing so can be very advantageous.
Key Takeaways
There are several potential reasons you might consider making a DIY sediment filter instead of purchasing one. They include the following:
However, there are also some potential drawbacks you should be aware of before you commit to the decision to make this your next do-it-yourself project. They are:
This thorough guide will provide all the information you need to build your DIY sediment water filter. Before building and installing it, consider having your water tested. This will help you better determine your filtration requirements.
Tools and items to gather before starting the process include:
It’s important to understand the components of a sediment filter before building one. Your basic goal is to connect multiple filter stages in a series. Thus, you can select housings to accommodate 10” or 20” cartridges. The cartridges will be either 2.5” or 4.5” (big blue) in diameter.
Nearly every company offers filter cartridges made to fit these industry standard sizes. This means they’re interchangeable, which offers the following advantages:
Tip: Avoid using proprietary filters and housings. They only fit products from the same manufacturer. This allows the manufacturer to make more money by requiring customers to solely buy their products. It also allows the manufacturer to charge more for them.
Consider flow rate when choosing a filter size. The larger the size, the greater the maximum flow rate. For instance, 2.5” x 10” may only deliver 2-3 gallons of filtered water per minute. This definitely isn’t enough for a whole house.
We recommend going with 4.5” x 10” or 4.5” x 20”. These are the commonly used sizes for whole house water filtration.
Additionally, larger filters need replacements less frequently, so that’s another plus.
By the way, homes with 2 to 3 bathrooms usually need a flow rate of around 10 gallons per minute (gpm).
Step-down sediment filtration involves multiple levels of filtration. It’s ideal when a home has multiple (sediment) water issues. Consider this example:
Your filter system may consist of 3 stages:
The 50-micron sediment pre-filter traps larger particles. This prevents them from prematurely clogging the next filter stages. Starting with a 50-micron filter stage removes sand, rust, and other dirt and debris which is ideal if you are on well water.
Important info about microns: A micron is one-thousandth of a millimeter. A smaller micron rating indicates a filter will trap smaller particles and offer more complete overall filtration.
This doesn’t necessarily mean smaller is always better in regard to micron ratings. Flow rate decreases as micron ratings get smaller. Because a whole house filter is meant to provide water for, well, the entire house, a drop in flow rate may be impractical. You must also consider that the flow rate and pressure will decrease with each additional filter stage.
You could even equip your DIY filter system with a carbon filter stage to improve your water’s taste and smell, and get rid of chemicals such as pesticides. Another popular option are iron filters.
You may want to install these components because they facilitate easier cartridge replacement. You can open the bypass to ensure your family still has access to water when you service your system.
Pressure gauges let you measure pressure before, in between, and after your filter chain. It’s wise to measure your pressure regularly. Replace one or more filter cartridges if the pressure drops substantially.
Your DIY sediment filter will do substantial work removing large contaminants. This is particularly true if you have a private well. It can easily clog up and require frequent replacements. This can become costly over time.
Thus, you might consider adding a drain line connection to your sediment filters. This theoretically allows for backwashing, ensuring trapped sediment which accumulates will eventually be discharged from the filter body.
That said, this only really works with some types of sediment filters. For example, it works with pleated sediment filters, but doesn’t work with melt-blown filters. Also, and this is important, there’s no guarantee that adding a backwashing drain connection to your sediment filters will actually work as intended. This is something you can test out, but don’t assume it will definitely serve its purpose.
Before installing your homemade sediment filter, carefully review the following points:
Once you’ve gathered all your components, follow these steps to install your DIY sediment water filter:
If you complete all the steps above properly, you should be all set! Remember, one of the benefits of building and installing a homemade sediment water filter is the freedom to make modifications as you see fit. Monitor your filter’s performance and make note of any changes you think might improve it.
If you have any questions about how to make a homemade sediment filter please don’t hesitate to leave a comment below!
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