Yes, burying downspouts is highly recommended. It is one of the best ways to protect your home’s foundation from costly water damage, prevents basement leaks, and eliminates tripping hazards in your yard. While it requires labor and upfront costs, a properly installed system keeps water away from your home's perimeter.
Burying downspouts improves the aesthetics of your home by hiding the pipes, enhances safety by reducing tripping hazards, and provides effective drainage that prevents water from pooling around your foundation, thus reducing the risk of basement flooding and soil erosion.
Buried downspouts effectively move roof runoff away from your foundation, but they frequently suffer from hidden clogs (caused by roof shingle gravel, leaves, or tree roots), freezing in winter, and standing water. These issues can cause gutters to overflow or force water directly into your basement or crawl space.
Every time it rains, more water flows through the pipe and the roots grow larger until the underground pipe becomes clogged and potentially bursts. If an underground drain becomes bound by roots, it's nearly impossible to fix.
Pouring salt down your drain at night is a popular DIY plumbing trick used for routine maintenance. The goal is to take advantage of the salt's coarse texture and natural moisture-absorbing properties.
These basins are much easier to clean out than the entire underground pipe. Annual Flushing: Even if you don't see a clog, flush your underground downspouts annually with a garden hose at full pressure. This prevents small amounts of sediment from hardening into a major blockage.
A good rule of thumb for downspout spacing is at least every 30 to 40 feet. If you want to play it safe or get a lot of torrential rain, err on the side of caution and install downspouts every 25 feet.
Common French Drain Mistakes
Key Considerations for Your Underground Downspout Drain Pipe
Proper Slope for Gravity Flow: A continuous slope is non-negotiable. The International Residential Code (IRC) specifies a minimum slope of 1/8 inch per foot to ensure gravity carries water away and prevents standing water.
Always vent downspouts at the house to keep buried downspouts from freezing. You can get warm water through that vent in the wintertime if you have a freeze up. Then, if you do freeze up and you have a thaw, the water will come out of these vents.
If a windstorm, lightning strike, or another covered peril damages your home's gutters, your homeowners policy may pay for their repair or replacement, up to your coverage limits and minus your deductible. Your homeowners policy won't cover damage to your gutters due to negligence or wear and tear.
A leaf blower is a gardening tool that propels air from a nozzle to move debris such as leaves and grass cuttings. Leaf blowers put out a high volume of air so they can be used to try to unclog a downspout. A Wet/Dry Vacuum Cleaner is also ideal for cleaning clogged downspouts.
Many new homes are built without gutters primarily to cut construction costs, as builders assume buyers can add them later. However, they may also be omitted intentionally if the home features deep, extended roof overhangs, perfectly sloped natural grading (the slope of the yard), or if it is located in an arid climate where heavy rainfall is rare.
Buried downspouts effectively move roof runoff away from your foundation, but they frequently suffer from hidden clogs (caused by roof shingle gravel, leaves, or tree roots), freezing in winter, and standing water. These issues can cause gutters to overflow or force water directly into your basement or crawl space.
Downspout alternatives replace or augment standard metal drainpipes. Top options include decorative rain chains that guide water into basins, rain barrels for water harvesting, French drains and dry wells for below-ground dispersal, or grading/bioretention to let water sheet naturally away from your foundation.
As the fall rains intensify and the seasons shift, one surprising tip is getting renewed attention: pouring vinegar down your drains to help prevent clogs.
Cons (Considerations) of French Drains:
For a French drain, the holes in your perforated pipe should face down (between the 5 and 7 o'clock position). This allows water that pools at the bottom of the gravel trench to easily rise up and enter the pipe through hydrostatic pressure, rather than waiting for the water level to submerge the entire pipe.
One often-overlooked improvement is burying your downspout gutters—a simple but highly effective upgrade that can help manage rainwater and protect your home's foundation. If you've ever had pooling water near your foundation, erosion in your landscaping, or a damp basement after a storm, you'll want to pay attention.
Avoid These Mistakes When Installing Gutters - Size, Seams & More
For a typical residential buried downspout, you should dig a trench 12 to 18 inches deep. This depth accommodates a standard 4-inch drain pipe (corrugated or PVC), provides a sufficient layer of soil for grass to grow above, and prevents the pipe from being crushed by surface activity.
Yes, downspouts can go into the ground, but they must not simply dump water directly beneath your foundation. Instead, they should connect to an underground extension system that safely carries roof runoff far away from the house.
Clean your one-story-high gutters right from the ground with an old paint roller on an extension handle. It's angled just right to push leaves and debris out quickly and easily.
Baking soda and vinegar do not effectively unclog drains. Instead of clearing debris, mixing them chemically neutralizes both ingredients into salt water. The fizzing reaction is visually satisfying but largely escapes upwards, offering zero power to dissolve grease, hair, or stubborn sludge.