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Build an Outdoor Sink (Part Two) – Connecting the Water Supply

How to Install an Outdoor Sink Faucet

So, I’ve already shared how I built my own DIY outdoor sink. Now, I will share how to install the outdoor sink faucet and connect it to the garden hose! It is such an easy set-up and I cannot help but be excited over the fact that having an outdoor sink is so convenient!

install outdoor sink faucet water


  • 1 faucet connector (water supply) at 12″ – 1/2″ FIP to 3/8″ COMP
  • 1 straight plumbing connector – 1/2″ MIP/outlet 3/8″ OD
  • 1 brass hose connector – double female swivel 1/2″ NPS male to 1/2″ male hose (should be found in the garden area of any home improvement store)
  • Roll of Teflon tape
  • “Y” splitter for spigot
  • 6′ leader hose
  • 16″ plastic slip joint center continuous waste outlet (the same type of T-shaped drain that is probably under the kitchen sink)

install outdoor sink faucet parts

install outdoor sink faucet-straight connector

install outdoor sink faucet-hose connector

install outdoor sink faucet-water supply

I connected my outdoor hose to the sink for the water. A line can be connected to both the hot water handle and the cold water handle, though obviously there will be no hot water. In my setup, I only have one line running to the cold water handle. Eventually, I will connect a line to the hot water handle so that it won’t matter which handle I turn on – I will have water on either side! I connected a “Y” splitter on my spigot so that I could keep my regular garden hose connected to the water, then will eventually add another “Y” splitter to the leader hose to run the line to the hot water handle, as well.

Use teflon tape on the threaded (male) ends of the connections. This will make it easier to take them apart, especially if they corrode and also during the winter so the water lines don’t freeze.

Remove the compression nut and the brass ferrule from the straight connector. These parts will not be used. Apply teflon tape to the wider end of the connector.

install outdoor sink faucet straight connector

 The straight connector will be attached to the brass hose connector.

install outdoor sink faucet hose connector

Apply teflon tape to the narrow end of the straight connector then connect it to the narrow end of the faucet connector (water supply line).

install outdoor sink faucet supply line

 The faucet connector will then be connected to the faucet while the other end will be connected to the leader hose, which is in turn connected to the “Y” splitter at the spigot.

install outdoor sink faucet hose

For the drain, I will connect a “T”-shaped drain which is exactly the same one that is found under the kitchen sink. Installing the drain is pretty straight-forward. Check the installation instructions on the packaging. (At the time I took the photo, I hadn’t installed the drain because the compression nut was corroded – I had to wait for Matt the bring a wrench back to the house!) Then, I will use a bucket to catch the grey-water.

install outdoor sink faucet straight

install outdoor sink faucet side

install outdoor sink faucet angle

Eventually, I would like to dig a trench to lay a PVC drain that will flow into the drainage path at the front of our house then I won’t need the bucket anymore! For now, I’m liking the bucket!

Easy-peasy, right? I would like to thank the guys at my local Do It Best hardware store who helped me gather all of the parts to install the outdoor sink faucet! Have a question or two? Contact me at cher {at} designsbystudioc {dot} com.

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  • Amelia

    This is a really inspired + inspiring idea. I’ve been wanting a mud room sink for awhile, but lack a mudroom. Why not put it in the backyard? Thanks for the tutorial, Cher!

    • CherTexter

      Thank you so much, Amelia! I cannot believe how much I’ve used mine already and it is so nice! Good luck with yours and if you have questions, please feel free to ask!

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  • Michaela

    One thing you missed is the air gap. Their is no gap of air between the drain and the bucket, so dirty water could back flow into the sink. Fix this by cutting the drain pipe shorter, leaving a gap between the drain and top rim of bucket. The bucket will overflow instead of allowing water to back up into the sink. 😉

    • CherTexter

      Hi, Michaela! Thank you for taking the time to comment – comments are always appreciated! The drain connected to the sink in the photo was only temporary until the new drain was installed. Thanks for the tip!

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  • Dockdog2

    I have a question about the legs of the sink. You list all 2×4 material on your list but the pictures don’t look like 2×4’s. Did you rip them down? Of buy them? If so can you list what size they are?
    Thank you

    • CherTexter

      The legs can be cut from 2x4s or 2x2s. Since there is no cut list (except for the height of the legs) it doesn’t really matter. I used 2x2s for the sink base I built. Hope this helps! :)