How to Make a Reverse Osmosis Water Filter at Home | 11 Easy Steps

How to Make a Reverse Osmosis Water Filter at Home

If you’ve decided to buy a water filter, it’s because of the reason that your tap water isn’t safe for consumption. However, doing so is still not good enough.

A water filter can help in removing some of the contaminants that are found in your tap water, but it cannot eradicate all of them.

Reverse osmosis water filters can produce water that is free of contaminants, but they are also known to waste a lot of water in the process. So what’s the solution?

A homemade Reverse Osmosis (RO) water filter is an effective alternative to expensive RO units. The purification system functions on the same principle as does an RO unit as it removes all the contaminants from water.

Required Components

Following are the components required for making a reverse osmosis water filter work:

Water Bottle

The first thing that you have to do is find a suitable container for your filter. A one-gallon glass jar will be perfect for this purpose. Make sure that its mouth is wide enough to allow for easy cleaning.

PEX Pipe

Expensive RO units use copper pipes, but this isn’t a necessity as you can easily use PEX pipe instead. The only difference between the two materials is that PEX doesn’t corrode or rot.

PEX Pipe Fittings

To connect the faucet with the water bottle, you will need a few PEX pipe fittings. These are available in hardware stores and home improvement centers.

A Piece of Cloth

To remove sediments from your homemade RO unit, a piece of cloth will be needed.

PEX Tubing

To connect the jar to your home’s plumbing, you will need to use a few pieces of tubing made from PEX (polyethylene cross-linked).

It can be bought at hardware and home improvement centers. Make sure that the tubing is flexible enough as it will have to bend through your kitchen sink’s faucet.

A Sharp Knife

PEX tubing needs to be cut with a sharp knife for an airtight fit. Cutting the tubing has to be done very carefully as it can cause injuries if you are not careful enough.

Make sure that the cut is clean and straight. If the ends of the tubing are not cut properly, the whole system will not function at all.

Steps to Make a Reverse Osmosis Water

Here’s a step by step guide on how you can make a homemade RO unit at home:

1. Get an empty one-gallon jar and screw it onto your faucet. Make sure that there is no gap between the jar and the faucet when they are joined together.

2. Place the jar upside down on top of your kitchen sink’s cabinet so that it can be used as a low-pressure reservoir tank. If you are using multiple containers, make sure that they are all connected with PEX tubing to act as one large water purifying system.

3. Now connect the faucet with the jar using a PEX connection. For this purpose, you will have to cut the tubing so that it fits perfectly into the female fittings on both ends. You can use a knife or any other sharp object to do this task properly.

4. Take out the aerator from your kitchen sink’s faucet. This will enhance the flow of water through your faucet, thus increasing the purification capacity of your homemade RO unit.

5. Position your jar on top of the sink cabinet in such a way that there is no gap between it and the faucet. The jar should also be at least twelve inches above the sink’s drain for a perfect outlet into the drain pipe.

6. Now connect PEX tubing from your jar’s outlet to your home’s plumbing by using a PEX connection. Make sure that you have enough length between the two ends of the tubing so that there is no need for excess re-bending throughout your home’s plumbing system. If there is a gap between the tubing and the home’s plumbing, you will end up wasting a considerable amount of water.

7. Fit your jar with a piece of cloth to filter sediments from your home’s tap water. Make sure that it fits properly into the mouth of the jar. In case there is any excess cloth around its opening, it will only hinder the flow of water, thus hampering the purification process.

8. Once you have connected everything properly, turn on your kitchen sink’s faucet to get fresh drinking water straight from your tap. The pressure in the RO system is generally very low, so make sure that you are running it directly through your home pipe system and not through the faucet.

9. To test whether your homemade RO unit is working properly or not, fill up a glass with tap water and let it sit for a few hours before checking to see if there are any sediments at the bottom of it. If everything functions as planned, you will find clear drinking water in the glass.

10. Make sure that you drink purified water only and do not let it stay in your system for more than a few hours since it is still susceptible to bacteria and parasites. If you want to store this water, use food-grade containers and keep them in a refrigerator or basement where there is enough insulation to keep the temperature low.

11. Keep changing your cloth filters regularly to maintain the quality of your drinking water. Also, make sure that you are buying food-grade containers to store purified water in them instead of using recycled ones since it can be harmful to drink from a container that has been used for other purposes previously.

Final Verdict!

That’s all there is to it, if you follow the above-mentioned steps properly, you can enjoy pure and clean drinking water straight from your tap without having to spend hundreds of dollars on expensive RO systems that work far less efficiently than this homemade RO unit.

Plus, if there is a power outage or any other emergency wherein running water might not be accessible, such as during natural disasters, you will be able to provide for your family with the water stored in your storage containers.

Looking forward to seeing your comments and experiences on reverse osmosis water filters in the comment section of this article.

Related Articles:

Leave a Comment