So what to do? It’s costly – and anything but green – to rely on bottled water.

There are plenty of options for getting fresher water from your tap. While filtration pitchers are a good option, they can be tedious and time-consuming, often needing a refill after every few pours.

If you’re looking for a more permanent solution – or just an easy DIY project – consider installing an under-the-sink water filter. Most of these systems are fairly affordable and easy to find online or in most major home goods or plumbing supply stores. There are also different levels of filtration available to suit your needs – single-filtration units can sell for as cheaply as $50, while some multi-stage or reverse osmosis filters (better for consumers worried about major contaminants like lead) can retail in the hundreds.

Ready to start drinking cleaner, fresher-tasting tap water? Here’s how to install an under-the-sink water filter to your line:

1.) Drill a Hole in Your Sink

In addition to the replaceable filter, most DIY filtration systems come with their own dedicated faucet that will have to be installed. Fortunately, this shouldn’t be too big of a hassle.

First, check to see if there’s a preexisting hole in your sink for securing soap dispensers or sprayers. If there is, this is the hole you’ll use. If not, you may need to drill a hole in your sink. This job will be slightly different depending on your unit. For recommendations on how to drill in porcelain tile, this video offers some ideas. If your sink is stainless steel, check out this step-by-step guide from Lifehacker.

2.) Install the Faucet and Split the Water Line

Once you have a suitable hole, install the new faucet. Run the water line and the end of the faucet through the hole and secure the unit following the directions that came with your kit.

Next, turn off the cold water using the knobs located under your sink and drain the line by running your faucet for a few moments.

There should already be a line from your sink connected to the water supply line. Using an adjustable wrench, disconnect this line and install a splitter to the fitting. This piece will allow water to run both to your old faucet and your new filter.

3.) Connect the New Filter

Now that you’ve tapped the cold water, you can hook up your filter. Attach the water line to the splitter and plug the other end into the filter unit (your filter should be clearly marked to show which water line is tap water in and which is filtered water out).

Don’t just leave your filter dangling! Secure it in a holder to the wall or the side of the cabinet. Once it comes time to change the filter, simply screw it out of the holder for easy access.

Once your filter is in place, turn the cold water back on and check to make sure that your fittings are secure and leak free. Make sure you run the filtered faucet for a few minutes before you drink any of the water coming from it.

Looking for help with another DIY plumbing project? Trying to tackle an emergency that’s too big to face alone? We’re here to help! For all of your plumbing , water leak, sewer and gas line needs, day or night, drop Combat Plumbing a line!