How to Install In-Ground Sprinklers – This Old House

This Old House landscape contractor Roger Cook shows how to water your lawn and garden—automatically. (See below for a shopping list and tools.)

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Full episode:

How to Save Water With an Irrigation Timer:

How to Install a Graywater Irrigation System:

How to Troubleshoot and Repair Weak Drip Irrigation:

Shopping for How to Install In-Ground Sprinklers:
– 1-inch-diameter polyethylene pipe and assorted fittings, for delivering water to the system
– 3/8-inch-diameter flexible pipe, connects polyethylene pipe to sprinkler spray heads
– pop-up sprinkler spray heads, used to disperse water onto lawn
– hose clamps,”] for securing fittings to hose
– battery-powered timer, automatically turns sprinkler system on and off
– 5-gallon bucket, used to determine how many gallons per minute of water comes from hose bib.
– wire flags, for pinpointing sprinkler head placement

Tools for How to Install In-Ground Sprinklers:
– pointed shovel, for digging trench for water-supply pipe
– propane torch, used to heat pipe ends
– pipe cutters, for cutting polyethylene pipe
– crimping pliers, for crimping hose clamps onto pipe

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  1. a te
    April 30, 2017

    3:24. That's what she said

  2. KIDMIX 2017
    May 1, 2017

    i am a certified irrigation technician and let me tell you, you def do not have to use a torch to heat up pipe, get a mallet and bang the fitting in, to much time with a torch

    May 1, 2017

    Small ass yard. Just hook a sprayer to a hose and water it yourself. Lmao

  4. Jonathan Read
    May 2, 2017

    Would have been nice to actually see the results for more than half a second…

  5. Pablo Settecase
    May 3, 2017

    Thanks! Now I know I need to hire someone. 👍

  6. kwikuk
    May 13, 2017

    here we go 'aight…

  7. Jose Pena
    May 17, 2017

    They should have put a t' before the hose Bibb, come down into the ground and installed a solenoid valve inside a valve box. After that they should have used pvc schedule 40 pipe with pvc fittings and glued it all together. And as for the sprinklers, since there wasn't enough flow, they should have used mp rotator nozzles instead of those high flow fan nozzles. As for the timer, they should have ran power meet the valve box and install an outlet for a proper 3 or 4 station timer. Than you simply connect the timer with the valve using a 3 station timer wire and programmed it to run through its settings. The work these guys did will not last up to 5 years. But what do I know!

  8. jbright97
    May 18, 2017

    what the heck, installing metal hose clamps underground. what's wrong with pvc pipe?

  9. عبد.الحمديد شوكري
    May 31, 2017


  10. juan O
    June 12, 2017

    can you put a spraingler sisystem in my home??, ..

  11. Mortgage Financing
    June 19, 2017

    "maaake shouwer" you have plenty of waawder

  12. Andrew Gems
    June 30, 2017

    They totally failed to mention that the whole system needs a low point to drain the system when the water turns off to empty the pipe in case of unexpected cold temperatures, especially in more northern locations, especially when buried only eight inches deep, otherwise the pipes will crack when the water freezes!

  13. Eric Bartholomew
    July 28, 2017

    Big thing i seen is the main line need to be below the freeze line. just good practice in case water in in the line . some people will open the line up at the end and blow any water out befor winter hits

  14. Jordan 33
    July 28, 2017

    I have no experience at all in irrigation, and I'm 18 years old. How do I go about getting a job in irrigation without any skills or experience.

  15. Luke Alley
    July 29, 2017

    Been doing irrigation for 20 yrs.Never have I seen somebody use mapp gas for fittings.What are you doing?Use a mallet man.

  16. Bailey Walker
    August 26, 2017

    Does anyone know what kind of brass fitting is used to connect the 1 inch poly to the 3/4 male hose thread? I'm guessing 1 inch FPT to 3/4 inch FHT. Any tips on where to find this adapter??

  17. ecoRfan
    August 29, 2017

    Hardcore New England accent

  18. kathryn liu
    September 13, 2017

    These guys are subpar contractors, if they were top notched they'd have their own companies and not living off PBS tax funded shows 👻

  19. mali
    September 19, 2017

    we just get water we want to install it?

  20. mali
    September 19, 2017

    i want to have water to make a garden, so i can grow grass and plants!

  21. mali
    September 19, 2017

    how can prepare the soil and the garden before water installation?

  22. Gotfridy Winstin
    September 25, 2017

    Hi am Gotfridy from Tanzania in Africa am much impressed with your irrigation system and I personally have enough fertile land and enough water for farm projects of any kind. please am asking for help to have a sponser of this kind of irrigation system. Am also ready for partnership if you are ready for this.

  23. Lei Chen
    October 9, 2017

    I don't wanna slip and fall on those nasty stones.

  24. kelin12100
    October 11, 2017

    I do irrigation on new plantations and i say hes creative and loves doing his job and making ut perfect we all have our style to work.. Good job Sir💯

  25. James McClaren
    October 12, 2017

    Shortest test video ever!! It’s like you stopped sucking 99% of the way. Fuuuuuhhhhhhh sprinklers.

  26. Faiz Wasta
    October 12, 2017

    Ake no.

  27. MsUltrafox
    November 1, 2017

    Here we go again with the redneck way of doing things without using brain cells.
    City water pressure is NOT always the same.
    During the day around eating times and early evening, the pressure is lower than let's say 5AM simply because fewer people are using water at that time.
    But why does it always have to be an ugly sprinkler system?
    Why not a total underground leaky pipe system.
    NO water to evaporate so all water goes to the soil.
    Also bring that meter INSIDE away from potential frost.
    And why use a timer why not use a hydrometer.
    Too dry water comes out if there is enough water tap stays closed.
    Saves water/money and you don't see anything above ground.

  28. Ng Edwin
    December 12, 2017

    Bad planning. Not even sure if you are using HDPE as main piping or LDPE. You don't need a 1 inch main carriage pipe for that small space. 16mm or 0.4 inch pipe for a 80PSI is more than suffice.

    Pop up sprinkle has different variant and radius, but if you are going to dig up your lawn in that manner, you might as well go ahead with drip lines or use a PVC pipe. Way more cost efficient and pretty much, no environmental degradation to the installed infrastructure.

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