Anyone can publish a cost range. What matters is whether they will tell you where it came from, when they checked it, and what happens when it turns out to be wrong. This page is our commitment on all three.
Independence
SepticTankLab is funded entirely by display advertising. We accept no money from septic contractors, manufacturers, insurers or lenders, in any form — no sponsorship, no referral fees, no affiliate commissions, no paid placement, no directory listings. Nobody can buy a mention, buy a recommendation, or buy their way out of a criticism.
Advertisements are selected automatically by the ad network. We do not choose them, we do not see them in advance, and their appearance next to an article is not an endorsement by us.
Where a conclusion is commercially inconvenient — our verdict on septic tank additives, for instance — we publish it anyway. That is the only reason an independent guide is worth reading.
Sourcing
We work outward from primary sources, in this order of preference:
- Federal and state regulators — the US EPA onsite wastewater programme, state departments of health and environmental quality.
- County health departments — permit conditions, fee schedules and inspection requirements, which is where the rules that actually bind you live.
- University extension services — Penn State, Minnesota, Florida, Washington State and others. Their sludge-accumulation and soil-loading research is the basis of the sizing tables the rest of the internet copies without attribution.
- Industry standards bodies — NSF/ANSI standards, the National Onsite Wastewater Recycling Association.
- Contractor quotes and reader invoices, for pricing only.
We do not build articles from other blogs. Where a claim is contested — and several common septic claims are — we say so rather than picking the tidier answer.
How cost figures are built
Detailed in How We Research Costs. In summary: every range is assembled from multiple independent quotes plus published fee schedules, expressed as a national range rather than a single number, and stamped with the month it was last checked. We publish the drivers that move a price, because a range without drivers is not usable.
Dating and freshness
Every page carries a visible published or last-reviewed date. Any page containing prices or regulatory detail is re-checked at least every twelve months. If a page passes that mark without review, we either update it or mark it as unverified — we do not quietly leave an old number looking current.
Corrections
We will make mistakes. When we do:
- Factual errors are fixed as soon as they are confirmed, usually within 48 hours of a credible report.
- Substantive corrections are disclosed on the page — a note saying what was wrong and when it was fixed. We do not silently rewrite a claim that readers may have acted on.
- Typos, broken links and formatting are fixed without a note.
- If an article turns out to be wrong at its foundation, we withdraw it rather than patch it, and say so.
Report an error to 
. Corrections from readers are the single most valuable thing we receive.
Scope limits, and why they exist
Three subjects are out of bounds here, deliberately.
Physical procedure. We do not publish step-by-step instructions for digging, opening, sealing or servicing a tank. Video does that job far better, and the work carries a real hazard: septic gas is an asphyxiant and has killed people who leaned into an open tank. When the answer is a shovel, we say so and stop.
Medical content. “Septic” collides with “sepsis”. Nothing on this site concerns human health or infection, and we never write about either. If you arrived searching for a medical answer, please speak to a doctor.
Property-specific advice. We describe how things generally work. We do not tell an individual reader what to do about their system, because septic rules are county-level and we have not seen your property. Every guide sends you to your county health department and a licensed local professional before you commit money.
Financial, legal and insurance matters
Where we cover insurance coverage, financing or the legal side of a property transaction, we describe how such arrangements generally work and what typical documents say. We never recommend a policy, a lender or a course of action, and we are not licensed to. Your policy wording and your state’s law govern; read the first and ask a professional about the second.
Use of AI tools
We use AI tools in production — for drafting structure, checking readability, and speeding up research triage. Every published page is reviewed, corrected and signed off by a named human editor who is accountable for it. Facts, figures and citations are verified against the primary sources listed above before publication, not taken from a model’s output. No page is published unreviewed.
Photographs
Photographs on this site are illustrative. They show the kind of equipment, site or situation a guide describes; they are not evidence, and they are never presented as a picture of a specific property, product or job we inspected.
They come from two places. Most are licensed stock photographs. Where no honest stock photograph existed for a subject — the inside of an effluent filter, a baffle mid-replacement — the image was generated with an AI image tool from a description written by our editors, and reviewed before publication. Generated images are used only for ordinary illustration. We do not use them to depict a real place, a named product, an identifiable person, or the result of any measurement or test reported here. Every image carries alt text describing what it actually shows.
No photograph on this site should be used to identify or diagnose your own system. That is what the written guidance and a licensed inspector are for.
Reader-supplied data
Cost figures sent in by readers go into aggregate ranges only. We never publish an individual invoice, name, address or contractor identity. Sending us a figure grants us permission to use it that way and nothing more.
Comments and moderation
Where comments are open, we remove spam, personal attacks, contractor advertising and anything that gives dangerous physical instruction. Disagreement with us is not a reason for removal — several of our better corrections started as an argument in a comment thread.
Contact
Editorial questions, corrections and complaints: , or NET STUDIO LLC, 1501 South Greeley Hwy, Ste C #1386, Cheyenne, WY 82007, United States.