My solution to this problem was to ignore them as much as possible and just keep digging.
Bury your gutter downspout.
And if you know my husband he was a home insurance adjuster for 5 years and worries about lots of possible losses.
If you want a neater look try burying the downspouts.
All of our gutters do not do a very good job of getting the water away from the house.
Occasionally downspouts are fitted in such a way that lets the water come out of the downspout to spread into the garden with the use of an extender.
Cover the inside of the fitting with pvc cement and push it into the lower end of the gutter downspout.
I ended up digging about 120 long in 4 hours.
This will really get the neighbors asking questions as it will look like your goal is to destroy your yard.
Repeat the similar procedure for the other end of the angle to connect it to the ground pipe.
Expect to pay more if the route is obstructed by tree roots or pavement.
A tutorial on how to bury a gutter downspout to move water away from the house.
However there are many good reasons why people might bury a downspout.
To avoid these problems bury your gutter downspout and direct the storm water flow away from your house.
In this instance be sure that the drain is buried under at least 4 6 inches of soil to keep it from freezing when filled with water causing a backup into the downspout and possible damage to your gutters.
Gutter downspouts that drain freely into a splash tray beside your house can cause serious water damage including flooding your crawl space or basement.
Start laying your drain pipe by attaching a 90 degree angle pipe to the gutter downspout.
Aug 29 2012 by matthew stock with don sulda.
Why a landscaper shouldn t install underground downspout extensions.
Some homeowners use gutter splash pans or downspout extensions to move the water away.
If your yard is sloped away from the house then the slope of your trench should end at least 12 inches lower than the beginning.