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What to Check During Septic Tank Pumping
- POST a QUESTION or COMMENT about what to look for during septic tank pumpout or cleanout operations
Septic tank pumping procedure: checkpoints during tank pumpout:
Septic tank inspection during tank pumpout: key information about the drainfield status can be discovered during the actual time that the septic tank is being pumped. We explain this here.
This septic tank pumpout article series provides a step by step, photo-illustrated guide to opening, pumping, and inspecting septic tanks, how a conventional septic tank is located, opened, pumped out, cleaned, and inspected.
This guideline is intended for septic pumping tank truck operators and as general information for homeowners or septic service companies concerned with septic system care.
InspectAPedia tolerates no conflicts of interest. We have no relationship with advertisers, products, or services discussed at this website.
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What to Inspect at the Septic Tank During Pumpout
A Photographic Guide to Pumping a Septic Tank
The steps in servicing a septic tank are listed and described in this article series, accompanied by
photographs that show each of the critical steps in pumping, cleaning, and inspecting a septic tank.
This is a chapter of SEPTIC SYSTEM INSPECTION & MAINTENANCE COURSE an online book on septic systems.
Inspection Points During Septic Tank Pumping
During Septic Tank Pumping:
- Noise of drainfield back-flow:
if the septic tank pumper observes (or hears) septic effluent flowing back into the septic tank from the tank outlet pipe this is a sure indication that the drainfield or soil absorption system is waterlogged, and indicates a system failure needing further investigation.
That's because normally effluent flows from the septic tank outlet towards the drainfield. If effluent is flowing backwards, it means there is standing water in the drainfield and it is flooded and not working. The drainfield could be flooded by local surface runoff, groundwater, or because the leach field no longer is passing effluent out rapidly enough. - When to listen at the septic tank for effluent back-flow:
from the beginning of the pump-down cycle to the end, but a clever pumper truck operator might stop the truck pumping (if noise is too close to the tank) when the effluent in the septic tank is just below the level of the outlet line leaving the tank.
This is when we would first hear and most-likely hear back-flow from the drainfield. If we wait until the whole tank is empty, we may have waited too long, and the water or effluent that was sitting in the drainfield may have already emptied itself into the septic tank (and been pumped out to the truck). - The photo above shows a concrete septic tank during pumping.
As the effluent level dropped below that of the bottom of the tank baffles, we stopped pumping briefly to listen for the sound of effluent flowing back into the tank from its outlet.Septic tank pumping is best performed from an access cover at the center of the tank if one is provided (as in this photo). This gives best access to the pumper to clean sludge and debris from all areas of the tank bottom.
Below at in the form of individual detailed articles are the Steps in Septic Tank Cleaning Procedure in the order that they should be performed
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Reader Comments, Questions & Answers About The Article Above
Below you will find questions and answers previously posted on this page at its page bottom reader comment box.
Reader Q&A - also see RECOMMENDED ARTICLES & FAQs
Should I have the D-box pumped when I have the septice tank pumped?
I have had a riser and cover installed on my D-box for easy access. Should I have the D-box pumped when I have the septice tank pumped? On 2019-06-17 by Tom
by (mod) - the D-box shouldn't need to be "pumped" but it's smart to inspect it
It's useful to inspect the D-box from time to time to be sure there is no evidence of drainfield failure such as standing sewage or water in the box.
But the D-box is normally about empty - certainly no standing effluent should be seen above the bottom of the outlet pipes leading into the drainfield.
And there should be no solid waste in the septic D-box.
So pumping the D-box is not needed as part of septic tank cleaning/pumping.
A good time to check the D-box condition is indeed when the septic tank is being pumped - as that's perhaps when you'll remember the task.
...
Continue reading at WASH SEPTIC TANK SIDES/BOTTOM or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX.
Or see these
Septic Pumping Procedure & Pumper Truck Operation Articles
- SEPTIC TANK INSPECTION PROCEDURE
- SEPTIC TANK PUMPING MISTAKES
- SEPTIC TANK PUMPING PROCEDURE
- SEPTIC TANK PUMPING SCHEDULE
- SEPTIC TANK SAFETY
Suggested citation for this web page
INSPECT the SEPTIC TANK DURING PUMPING at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice.
Or see this
INDEX to RELATED ARTICLES: ARTICLE INDEX to SEPTIC SYSTEMS
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Citations & References
In addition to any citations in the article above, a full list is available on request.
- New York State Department of Health, APPENDIX 75-A WASTEWATER TREATMENT STANDARDS - INDIVIDUAL HOUSEHOLD SYSTEMS , [PDF] New York State Department of Health, 3 February 2010, retrieved 3/1/2010, original source: https://www.health.ny.gov/regulations/nycrr/title_10/part_75/appendix_75-a.htm
- Special thanks to M & O Sanitation, Dutchess County NY (845) 471-0308 for permitting us to photograph steps during septic system service at our demonstration property.
- SEPTIC TANK/SOIL-ABSORPTION SYSTEMS: HOW TO OPERATE & MAINTAIN [PDF] - , Equipment Tips, U.S. Department of Agriculture, 8271 1302, 7100 Engineering, 2300 Recreation, September 1982, web search 08/28/2010, original source: http://www.fs.fed.us/t-d/pubs/pdfimage/82711302.pdf.
- Pennsylvania State Wastewater Treatment Fact Sheet SW-161, Septic System Failure: Diagnosis and Treatment
- Pennsylvania State Wastewater Treatment Fact Sheet SW-162, The Soil Media and the Percolation Test
- Pennsylvania State Wastewater Treatment Fact Sheet SW-l64, Mound Systems for Wastewater Treatment
- Pennsylvania State Wastewater Treatment Fact Sheet SW-165, Septic Tank-Soil Absorption Systems
- Document Sources used for this web page include but are not limited to: Agricultural Fact Sheet #SW-161 "Septic Tank Pumping," by Paul D. Robillard and Kelli S. Martin. Penn State College of Agriculture - Cooperative Extension, edited and annotated by Dan Friedman (Thanks: to Bob Mackey for proofreading the original source material.)
- "Manual of Policy, Procedures, and Guidelines for Onsite Sewage Systems," Ontario Reg. 374/81, Part VII of the Environmental Protection Act (Canada), ISBN 0-7743-7303-2, Ministry of the Environment,135 St. Clair Ave. West, Toronto Ontario M4V 1P5 Canada $24. CDN.
- Manual of Septic Tank Practice, US Public Health Service's 1959.
- Advanced Onsite Wastewater Systems Technologies, Anish R. Jantrania, Mark A. Gross. Anish Jantrania, Ph.D., P.E., M.B.A., is a Consulting Engineer, in Mechanicsville VA, 804-550-0389 (2006). Outstanding technical reference especially on alternative septic system design alternatives. Written for designers and engineers, this book is not at all easy going for homeowners but is a text I recommend for professionals--DF.
- Onsite Wastewater Treatment Systems, Bennette D. Burks, Mary Margaret Minnis, Hogarth House 1994 - one of the best septic system books around, suffering a bit from small fonts and a weak index. While it contains some material more technical than needed by homeowners, Burks/Minnis book on onsite wastewater treatment systems a very useful reference for both property owners and septic system designers.
- Septic Tank/Soil-Absorption Systems: How to Operate & Maintain, Equipment Tips, U.S. Department of Agriculture, 8271 1302, 7100 Engineering, 2300 Recreation, September 1982, web search 08/28/2010, original source: http://www.fs.fed.us/t-d/pubs/pdfimage/82711302.pdf
- Septic System Owner's Manual, Lloyd Kahn, Blair Allen, Julie Jones, Shelter Publications, 2000 $14.95 U.S. - easy to understand, well illustrated, one of the best practical references around on septic design basics including some advanced systems; a little short on safety and maintenance.
- US EPA ONSITE WASTEWATER TREATMENT SYSTEMS MANUAL Top Reference: US EPA's Design Manual for Onsite Wastewater Treatment and Disposal, 1980, available from the US EPA, the US GPO Superintendent of Documents (Pueblo CO), and from the National Small Flows Clearinghouse. Original source http://www.epa.gov/ORD/NRMRL/Pubs/625R00008/625R00008.htm
- Wells and Septic System, Alth, Max and Charlet, Rev. by S. Blackwell Duncan, $ 18.95; Tab Books 1992.
- In addition to citations & references found in this article, see the research citations given at the end of the related articles found at our suggested
CONTINUE READING or RECOMMENDED ARTICLES.
- Carson, Dunlop & Associates Ltd., 120 Carlton Street Suite 407, Toronto ON M5A 4K2. Tel: (416) 964-9415 1-800-268-7070 Email: info@carsondunlop.com. Alan Carson is a past president of ASHI, the American Society of Home Inspectors.
Thanks to Alan Carson and Bob Dunlop, for permission for InspectAPedia to use text excerpts from The HOME REFERENCE BOOK - the Encyclopedia of Homes and to use illustrations from The ILLUSTRATED HOME .
Carson Dunlop Associates provides extensive home inspection education and report writing material. In gratitude we provide links to tsome Carson Dunlop Associates products and services.
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