Incorrect pitch of extension underground downspout extensions must be pitched properly to achieve proper drainage in your yard.
Undergrpund gutter drain is bad.
However when a drain is placed underground it becomes susceptible to being damaged or clogged.
If there s any chance you might have drainage problems invest in pop up drains or if necessary something more robust like french drains.
Landscapers typically use corrugated plastic pipe that is great for interior drain tile but not recommended for underground downspout extensions because it leaches water through its perforations.
An underground drain pipe can become clogged in a variety of ways including leaf buildup or damage to the pipe itself.
Insert it back into the drain until you hit resistance again then turn the handle back and forth to work some of the clog free.
Gutters catch rainwater as it descends from your roof and direct its flow to your downspout to drain.
Many of these pipes are placed underground to avoid the eyesore of pipes laying on the ground next to your house.
Usually underground drains are piped anywhere between 5 100 feet depending on the terrain and the preference of the homeowner.
Here are a few reasons why a drain can get damaged or clogged.
Debris flowing down a downspout drain that has been foolishly connected to the building foundation drain system can block that drain leading to basement flooding from either roof runoff or surface and subsurface runoff or both.
When the water from the downspout flows into the drain tile system it multiplies several times over the volume of water the drain tile was designed to handle.
Debris flowing down the downspout drain leaves from gutters can block floor drains or even the main building sewer line leading to sewage backups into the structure.
Sometimes clogged debris can be the culprit.
Landscapers sometimes get this wrong occasionally even installing them like an underground u that creates more problems than it solves by forcing discharge water.
This greater volume of water creates a huge load on the sump pump which will run almost continuously in heavy rains shortening its life and increasing the risk of failure.
Drain crushed by vehicles or heavy equipment above ground.
Dig up the problem pipe.
If downspouts drain too close to the home this can also result in pooling water around the home.
Your gutter design drains too much water into one area.
Underground downspouts divert this water away from your home which protects your foundation and keeps your basement dry.
A rain gutter drain pipe is usually installed to carry water away from your house.
If this is the case attempting to clear the clog like you would with a vertical pipe may very well do the trick.
Check for underground clogs.
Reverse the auger to pull it out of the drain and clear it of debris.