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How to Install an Outdoor Tap

Posted by Adrian
May 20th, 2019

How to Install an Outdoor Tap

Outside taps are essential if you use a garden hose to water the garden, use a sprinkler, irrigation system or even just a pressure washer to clean the patio or car. If you have not already got one you may be thinking it is going to cost a lot of money to call a plumber in to do it. Well if you are confident enough you can fit an outside tap yourself by using an outside tap kit readily available in hardware stores.

In this post I will describe how to fit an outdoor tap but you can also watch the included video to see how it is done. As with all plumbing jobs, if you are not sure how to do it, call a professional plumber to give advice or do the job for you, you do not want to end up ankle deep in water.

If you buy an outdoor tap kit you will have everything you need to install the tap, including an isolator tap.
Outside tap with hose fitted

Tools required

You will need the following tools:

  • An Outdoor Tap Kit
  • Masonry Drill Bits (6mm and 16mm)
  • Screwdrivers
  • Adjustable spanner
  • PTFE (thread tape)
  • A Sharp Knife

Installing the water supply pipe

To install the water supply you need to connect to an existing copper water pipe. This is done by using a self cutting isolator tap to cut into the copper pipe. You should clean the copper pipe, remove any paint with a scraper or knife in the area you are going to install the isolator tap.

Remove the isolator tap from the clamp and attach the clamp to the copper pipe in the place you wish to have the isolator tap. Ensure the clamp seal washer is correctly in place before tightening the clamp to the copper pipe.

When the clamp is in place take the self cutting isolator tap and place it into the clamp hole making sure the isolator tap is turned off, be careful not to cross thread the tap, screw the isolator tap clockwise until the cutter has cut a hole into the copper pipe.

Once the isolator tap has cut a hole into the copper pipe you need to secure the tap by using the back nut onto the clamp. You can test the isolator tap now by turning it on, catch the water in a bucket, the turn the isolator tap off again.

Once you are happy the isolator tap is fitted OK and working, you can connect the water supply flexible hose to the end of the isolator tap.

You should now drill a 16mm hole through the wall if you are having an external tap, but if you are having the tap in say a garage you do not need to do this stage. If you are drilling a hole, do so now and push the water supply flexible hose through the hole.

You can now move on and fit the outdoor tap.

Installing the outdoor / garden tap

Once you have the water supply to the location of your outdoor tap you can then install the tap.

Take the backing plate / wall mounted connector, the water inlet and the tap and wrap some PTFE (thread tape) around the threads to ensure a watertight seal. Wrap the PTFE tape around the thread a few times of both the inlet and the tap. The screw the inlet onto the backing plate / wall mounted connector and use an adjustable spanner to tighten this onto the backing plate.

Now decide where you wish for the tap to be fixed to the wall, mark the holes using the backing plate and drill and rawl plug the holes, then screw the backing plate onto the wall.

You now need to cut the water supply flexible pipe to the correct length, you can cut the pipe with a sharp knife, once you have done this you can push the pipe onto the water inlet on the backing plate, secure the pipe using a hose (jubilee) clip.

Next you can screw the tap into the backing plate / wall mounted connector, tighten the tap into the connector with adjustable spanners.

Now the tap is fitted and you have the water supply connected up you can attach the hose adapter or whatever fitting you have for the tap.

Finally, you can turn on the isolator tap to allow water down the water supply hose and to the outdoor tap, then undo the tap and test the function of the tap.

You have just fitted an outdoor tap.

How to Install an Outdoor Tap video

Watch this video to see step by step stages of how to fit an outdoor / garden tap.

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