Sewage Coming out of Pipe in Yard | Know What to Do

There might be a ‘clean out’ sewage or septic hookup pipes on some properties that the homeowners are unaware of. This typically white pipe gives you access to your main sewer line. There could be a sewage backup in yard and even into the house if these pipes ever become blocked or clogged. If you start to smell sewage outside of your house, you might be alerted of a sewage backlog in your yard.

A problem with your sewage system or sewer line may be the unfortunate cause of a pool of water in your yard. This could lead to several issues for your property, including damage to health and environmental problems, as well as an uncomfortable place to live because of the contaminated water.

Raw sewage on your property is a serious health risk that has to be addressed right away.

Reasons Why Sewage Coming Out of Pipe in Yard

soil and sewage coming out of pipe

Listed below are the reasons why sewage coming out of pipe in yard.


Your pipes often become clogged with oil, grease, and fats, which reduces the amount of space that trash can pass through. When they clog, materials like paper towels, “flushable” wipes, and excessive toilet paper may build up there. Only toilet paper and human waste should be flushed. Grease should not be poured down the sink.

Drainage Waste

clog drainage

The problem could be a main line leak, a clogged drain field, or an outdated septic tank. The trouble spot is frequently found just beneath the sewer water pool.

Grass or tree roots

A sewage leak underneath may be the cause of a particularly lush and green patch of grass in your yard. Since sewage serves as a fertilizer for plants, if your main line leaks into the soil nearby, the grass will receive more nutrients, giving it a lush and extra-green look.


Insects like cockroaches, palmetto bugs, and sewer flies are likely to enter pipes and sewers.


Mold growth may also be an indication of a sewer line break that is concealed behind walls. Molds can begin to grow even when the humidity level is just over 55%. Given that, a broken sewer pipe hidden behind a wall may raise the humidity to a level where mold growth is likely to start. You likely have a break in your sewage drain pipes if you see mold growth in your home and a sewer-like odor.

Outdated pipes

Old terracotta or cast iron sewer lines are more prone to leak or break apart. Terracotta pipes are highly prone to roots and leaks, whereas cast iron pipes tarnish and rust over time.

Rats / Rodents

Rats can enter the pipes running behind your walls from the city or mainline tie-in as they dwell in sewers. A typical rat can enter your sanitary sewer through a crack or aperture that is the size of a quarter (or roughly 3/4 inch).

Sewage backups and blockages

sewage coming out of pipe

A blockage in the pipelines at some point causes sewage backup. There may be an underlying issue, such as mismatched connections, soil seeping into cracks, or root penetration if you keep experiencing this issue after having the pipes cleaned.

Sinkholes, settlement, and cracks in the foundation

A hole could form under the foundation or in the yard if the main line that runs under your slab develops a leak and is left unattended for a long time. This could result in foundation issues like foundation cracks, settlement of your home or building, and possibly even a sinkhole. This sinkhole and cracks can damage the pipe beneath.


Your sewer line may experience pressure as a result of shifting soil, which could lead to pipe collapse, cracking, and leakage. Rain, flooding, droughts, freezing temperatures, and other factors can cause soil to move.

Unpleasant Odor

There may be a crack in your sewer system if you can smell sewer gas inside or around your house or building.

Know What to Do When Sewage Coming out of Pipe in Yard

improper drainage

Dealing with sewage coming out of the pipe in yard and sewage coming out of the outside drain is unpleasant in any situation. However, since it’s a serious issue and provides a serious threat to your health, you can’t simply ignore the sewage overflow.

You can deal with the problem of sewage in your yard by following these simple steps:

Step 1: Determine the source of the sewage.

Note: It is preferable to call in the professionals if the issue is too huge for you to handle.

Step 2: Shut off the pipe’s water source.

Step 3: Dig up the pipe in the problem area.

Step 4: Clean the pipe and get rid of any sewage or clogs.

Step 5: Get a replacement pipe.

Step 6: Remove all the shattered parts.

Step 7: To ensure a strong binding, clean the ends of the old and new pipes.

Step 8: Install the replacement

Step 9: Wait for the newly built pipe to dry.

Step 10: Test for leaks by running water through the pipe.


It can be stressful to deal with sewage in your yard. Without enough understanding of the cause of the issue, it might be challenging to address the sewage overflow problem and fix it. A broken pipe can be fixed in a variety of ways. However, it is always preferable to contact professional help if you are certain that you cannot handle the problem.

Additionally, putting some protections in place will help you lower the likelihood that such problems will arise. The probability of sewage problems cannot ever be eliminated. That is why the wisest course of action is to be ready for anything.


Serving South Central Pennsylvania and Northern Maryland
PA# 019590 MD# 108211
We also do : Water Damage Restoration, Drying & Dehumidification, Fire, Smoke & Soot Clean Up, Sump Pump Failures, Restoration and Mitigation, Crime Scene Clean Up, Pack Outs, Biohazard, Puff-back Cleanup, Mold Remediation, Sewage Clean Up, Water Extraction and General Contracting

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1214 East Market Street
York, PA 17403


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