Installing an Under-the-Sink Water Filter - Engineer Mommy /* ]]> */
Aug 282018

This is a sponsored post written by me for Clearly Filtered. All opinions are mine alone. This post is provided for informational purposes only. You should hire a plumber if you are not comfortable performing plumbing tasks in your home.

When we first moved into our current home, one of my favorite aspects of our kitchen was a dedicated faucet for drinking water. The sink had two faucets (one for washing hands/dishes and one for filtered drinking water), but there was one problem. The water filtration system under the sink was quite outdated and needed to be replaced. I recently had the opportunity to upgrade it to the Clearly Filtered Under-the-Sink Water Filtration System and I can’t wait to share all the details with you.

Their revolutionary new 3-Stage Filtration System from Clearly Filtered installs under the sink and filters cold water. There are three levels of filtration from common tap water contaminants. Here’s what’s removed:

  • Chlorine up to 90%
  • Chloramines up to 93%
  • Fluoride up to 99.5%
  • Nitrates up to 95%
  • BPA up to 92%
  • Pharmaceuticals Up to 99%
  • Lead, Iron, Copper, Mercury, Aluminum up to 99.99%

Impressive, right?

Installing an Under-the-Sink Water Filter

Installing an Under-the-Sink Water Filter

To get started with the installation, first locate the water valve that supplies water to the faucet in question. Shut it by turning the valve clockwise. Disconnect the cold water line at the valve, but be prepared to catch any dripping water in a small tray.
Installing an Under-the-Sink Water Filter

Installing an Under-the-Sink Water Filter

Next connect the hoses from the Water Filtration System to the water supply valve and to the faucet. I like to wrap the pipe threads in some plumbing tape to create a tighter seal and guard against leaks.
Installing an Under-the-Sink Water Filter

Installing an Under-the-Sink Water Filter

You can mount the filter bracket on the inside of the cabinet with the included screws. If you do, be sure to leave at least 3″ below the bottom of the filters for easy replacement in the future. Turn on the water valve and check for any leaks. Tighten valves, if necessary.
Installing an Under-the-Sink Water Filter

Installing an Under-the-Sink Water Filter

Turn on the faucet. Allow the water to run for 3 minutes or until the water is crystal-clear. Initially, you will likely see cloudy water (due to air bubbles), but this should lessen within several days.
Installing an Under-the-Sink Water Filter

Installing an Under-the-Sink Water Filter

I hope this post has inspired you to upgrade your own water filtration systems. The installation process for this Clearly Filtered system took about 15 minutes using tools we already had on hand (wrench, drill, plumbing tape, etc.) The best part? I am enjoying the clean, fresh water that I can get right from the tap!
Installing an Under-the-Sink Water Filter

Installing an Under-the-Sink Water Filter

Keep in mind that these filters last an average of 1 year. Worried you’ll forget about replacement? Here’s a useful tip: write down the date of installation so you can keep track of the timeline. Also, consider signing up for the VIP Filter Program, where you will get automatic deliveries of new filters & save money at the same time. When you do have to change the filters, you will be happy to know they are equipped with leak-proof filter heads- simply twist the new filters in place without any tools!
Installing an Under-the-Sink Water Filter

Installing an Under-the-Sink Water Filter

Learn more about the water filtration systems available at Clearly Filtered. Do you have a dedicated faucet for drinking water? Are you comfortable doing plumbing jobs in your home? Have you ever replaced a faucet/filter?

Disclosure: Engineer Mommy is a participant in the Amazon Services, LLC Associates Program, which is an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to For additional details, please see our full Disclosure Policy. Any link may be an affiliate link. All opinions are exclusively my own.
 August 28, 2018  Posted by

20 Responses to “Installing an Under-the-Sink Water Filter”

  1. Do you know I’ve never thought about putting something like this in – but what a great idea! I love the idea of having fresh filtered water from the tap!

    • EngineerMommy

      Yes, it’s so convenient! Plus, I now use filtered water for cooking pasta and washing my produce. I never would have done that before installing this under-sink system!

  2. I know many of our friends have a water filter in their home that live in the city. We live on well water and have it tested. It is so pure it doesn’t need to be filtered.

  3. Oh cool, I need to do this! I drink a lot of water, so it would come in handy. I want to be sure my water is safe to drink.

  4. This looks like it’s super easy to install. This water system would be perfect for our home.

  5. Our water here taste nasty and we spend a fortune on bottled water which isn’t good for the Environment so I need to check into a water filter and see if it makes a difference in the taste of the water. As it would keep the Environment safe and save us money as well.

    • EngineerMommy

      Yes, those water bottles aren’t good for the environment! Check out this system- we’ve been really enjoying it.

  6. We definitely need one of those at our house. Our water is extremely hard and it does not is good. It definitely needs to be filtered. My husband is pretty handy so I’m thinking that he could do something like this too.

  7. I want to get something like this for our house. Thanks for the guide, I felt like it might be a little daunting.

  8. This is really neat! I have never seen an under the sink water filter, this will come in handy for a lot of people.

  9. It’s nice that you have your own water filter installed under your sink. We also have one that converts to alkaline water because of my mom’s condition.

  10. Oh wow. You make it look so easy. We drink a lot of water and this would be a great thing to have!

  11. Nope I am not comfortable doing my own plumbing. We’re not handy. My Dad used to help and once he got older we have a friend that’s a plumber that helps.

  12. Thank you for sharing with us todaygluten sensitivity

  13. Wow! I never heard of this one yet until I got to drop by on your website. This is so nice. Having your tap water turned as your drinking water already. So cool!

  14. I wish we had a filter in our home. Glad to read it’s a manageable process to install it.

  15. We buy our water in large jugs but I have thought about doing this. Might just be our next home project.

  16. I would love to get a filtration system for our sink! I spend so much money on bottled water.

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