How to Redirect Rainwater From a Downspout

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As rainwater falls from the roof of your house into the gutters, downspouts empty the gutters by collecting the rainwater and directing it away from the house. Sometimes water pools under your downspout and can cause flooding and other damage to your home. Use this information on how to redirect rainwater from a downspout to protect your home from water damage.

Steps

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    Make a mark on the downspout at the 9 inch (22.86 cm) mark. [1]
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    Use a fine-tooth hacksaw to make the cut. [2]
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    The cap prevents water, debris, and/or rodents from entering the standpipe. [3]
    • If you can't find a standard sewer standpipe cap to fit, use a generic rubber cap and secure it with a hose clamp.
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    Be sure to place the downspout inside the elbow and not around the outside of the elbow or the downspout will leak. Use pliers to bend the end of the downspout as needed to get a tight fit. [4]
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    [5]
    • You can also use a plastic downspout extension of the same size.
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    Pre-drilling holes in the elbow may make screwing it to the downspout easier.
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    Cut the extension to the desired length using a hacksaw.
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      Tips

      • Downspouts can be extended beneath raised patios, porches, or decks to redirect rainwater to flowerbeds and other areas were water is needed.
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      • Do not direct diverted rainwater towards sidewalks, driveways, or other solid surfaces in order to avoid icing hazards during winter weather.
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      • Make sure that the diverted rainwater flows into your yard or garden and away from the foundation of your house in order to avoid flooding or other damage to the foundation.
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      Things You'll Need

      • Tape measure
      • Fine-tooth hacksaw
      • Sewer standpipe cap
      • Downspout elbow
      • Metal or plastic downspout extension


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      References

      1. ↑ https://www.smgov.net/uploadedFiles/Departments/OSE/Categories/Urban_Runoff/Downspout_Redirect_HowTo.pdf
      2. ↑ https://www.smgov.net/uploadedFiles/Departments/OSE/Categories/Urban_Runoff/Downspout_Redirect_HowTo.pdf
      3. ↑ https://www.lcbp.org/water-environment/water-quality/stormwater/how-to-redirect-a-downspout/
      4. ↑ https://www.lcbp.org/water-environment/water-quality/stormwater/how-to-redirect-a-downspout/
      5. ↑ https://www.norfolk.gov/DocumentCenter/View/30044/Downspout_Guide_Local?bidId=

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