/drainage-guides

How to check my main sewer drain without calling a plumber?

Learn to inspect your main sewer drain without a plumber using simple tools, a clear step-by-step guide to locate blockages and check for tree roots.

Reviewed by Content Team

Head of Content, D. Gorenko

Updated June, 5

Expert Drainage Solutions Await!

Drainage issues in St. Louis or Nashville? Our experts provide quick repairs and maintenance to keep you cool. Contact us today!

Request a quote

How to check my main sewer drain without calling a plumber?

 
Prepare and Gather Your Tools
 

  • Collect basic tools such as a flashlight, a plumbing snake (drain auger), protective gloves, and safety goggles.
  • If available, consider renting a sewer inspection camera from a local hardware or home improvement store.
  • Have rags, a bucket, and a disinfectant ready for cleanup after the inspection.

 
Locate the Sewer Cleanout
 

  • Find the main sewer cleanout on your property. This could be located near your foundation, in the basement, or in the yard.
  • Look for a capped pipe with a removable plug; ensure it is accessible and in good condition.
  • If you are unsure where the cleanout is, check your property plans or ask neighbors who may have similar setups.

 
Perform a Visual Inspection
 

  • Remove the cleanout cap carefully; be prepared for a small spill and wear protective gear.
  • Use a flashlight to inspect the opening for obvious blockages such as debris, tree roots, or grease buildup.
  • If you have rented a sewer inspection camera, insert it into the drain to examine the pipe’s interior condition. This can help you identify any areas of damage or serious clogs.

 
Test Water Flow and Drainage
 

  • Run water from several fixtures in your house (e.g., sinks, showers, and tubs) simultaneously to increase the volume of water entering the system.
  • Monitor the water drainage at the cleanout to see if it flows freely or backs up, which can indicate an obstruction.
  • If the water drains slowly or backs up into other fixtures, it suggests that a blockage may be present further down the line.

 
Use a Plumbing Snake to Clear Minor Blockages
 

  • Insert the plumbing snake carefully into the cleanout opening and slowly push it through the pipe.
  • Rotate the snake while pushing it forward to break up and hook onto any debris or clogs.
  • Retrieve the snake periodically to remove any accumulated debris. Repeat this process until you feel the obstruction has been cleared.

 
Check for Signs of Tree Root Intrusion
 

  • If you notice a persistent blockage or see roots during the camera inspection or snake usage, tree roots might have invaded your sewer line.
  • Light root intrusion can sometimes be trimmed back with the snake, but significant growth may require professional treatment.
  • For minor cases, some hardware stores offer root-cutting tools designed for this purpose.

 
Perform a Final Flush and Clean-Up
 

  • After using the plumbing snake or camera inspection, run water through the system one more time to ensure proper flow.
  • Clean the area around the cleanout and properly dispose of any debris and contaminated water.
  • Replace the cleanout cap securely once you are satisfied with the inspection and any remediation you performed.

 
Evaluate the Results and Decide on Next Steps
 

  • If you are able to clear the blockage and the water drains normally, continue to monitor the situation periodically.
  • If problems persist despite your efforts or you observe significant damage to the pipes, consider consulting a professional plumber for further evaluation.
  • Maintain periodic inspections as part of regular home maintenance to prevent future sewer issues.

 

It’s not uncommon for homeowners in St. Louis and Nashville to encounter similar sewer line challenges, making routine inspections a practical step in home upkeep.

Areas Of Expertise

We treat our people as our top priority so they'll treat you the same way. 100% Satisfaction, Every Time!

Air Conditioning

Providing air conditioning repairs, installation and maintenance for St Louis, MO and Nashville, TN. During the hot summers, call Hoffmann Brothers for all your AC repairs, replacement, and tuneup needs.

Electrical Repair

Hoffmann Brothers offers residential and commercial electrical services for St Louis homes and businesses. Lighting, outlets, panels, whole house fans, generators, and more. Call our licensed electricians today!

Heating Services

Need a furnace repair in St Louis or Nashville? Hoffmann Brothers can handle all your heating repairs, no matter the brand, including ductless mini-split systems. We also proudly offer heating system installations, and ongoing maintenance services.

Appliances

Hoffmann Brothers offers appliance repair services throughout St Louis, MO! Our experienced technicians are trained to work on all major brands of most home appliances including Dishwashers, Refrigerators & Freezers, Washing Machines & Dryers, and Ovens.

Plumbing Services

Hoffmann Brothers is your experienced Plumbing Company service both St Louis and Nashville. We offer plumbing repairs and installations, along with drain and sewer solutions.

Commercial Services

Do you need Mechanical or Commercial services for your St Louis or Nashville area business? We offer HVAC, Plumbing, Electrical (St Louis only), Indoor Air Quality, and more.

Water Heaters

Hoffmann Brothers is your professional water heater contractors for both Nashville, TN and St Louis, MO. We provide hot water heater installation, repair, and maintenance for both standard and tankless systems.

Drains & Sewers

Hoffmann Brothers is your Nashville and St Louis area drain Plumber. We provide drain cleaning and clearing and much more. Trust our drain experts to fix your clogged sink or toilet quickly and efficiently.

SERVING

St. Louis & Nashville Areas

Brentwood, MO
1025 Hanley Industrial
Brentwood, MO 63144

Nashville, TN
45 Willow St.
Nashville, TN 37210

Call Our St. Louis Office

Call Our Nashville Office

Nashville Location

(615) 515-3015

Read More

How to clear a drain that’s blocked with paint residue?

Clear a paint-blocked drain safely with step-by-step tips on removing residue, using solvents and tools, and preventing future clogs.

How to fix a leaking drain pipe under concrete?

Fix leaking drain pipes beneath concrete with our step-by-step guide. Assess damage, repair the pipe, and restore concrete for a secure, long-lasting fix.

How to install a drain vent to prevent negative pressure?

Step-by-step guide to installing a drain vent that equalizes pressure and prevents negative pressure. Find tips on tools, planning, installation, and testing.

How to reroute an old drainage pipe in my house?

Follow our step-by-step guide to safely reroute your old drainage pipe. Learn planning, excavation, installation and testing tips to ensure proper drainage.

How to use a wet/dry vacuum to suck out a clog?

Learn how to safely remove clogs with a wet/dry vacuum. Follow our step-by-step guide on preparing your area, sealing the connection, operating the vacuum, and cleaning up for clear drains.

How to install a water pressure regulator to prevent drain issues?

Step-by-step guide to installing your water pressure regulator. Learn planning, tool prep, pipe cutting, testing, and maintenance to prevent drain issues.