Updated October 2026. Product details and prices are taken from the maker’s website as of October 2026. We earn a commission if you buy Septifix through links on this page, at no extra cost to you. We have not lab-tested Septifix.
Septifix is a flushable septic tank tablet that adds aerobic bacteria and an oxygen-releasing compound to your tank. It’s easy to use, costs roughly $8 to $12 a month at the maker’s listed prices, and comes with a 60-day money-back guarantee. The maker’s biggest claims, that it can eliminate pumping and destroy E. coli and salmonella, aren’t backed by any independent data we could find, and public health agencies say no additive replaces regular pumping. It’s a reasonable choice for routine maintenance, not a fix for a septic system that is already failing.
Septifix at a glance
| Question | Answer (maker’s claims unless noted) |
|---|---|
| What it is | A 55-gram tablet you flush down the toilet |
| What’s in it | 14 strains of aerobic bacteria (the maker says over 10 billion per gram), plus oxygen-releasing and pH-buffering compounds; the tablets release sodium carbonate and oxygen as they dissolve |
| Dose | 3 tablets to start, then 1 tablet a month |
| Price (October 2026) | 6-month supply $69 plus shipping; 12-month supply $118; 18-month supply $147, both with free shipping |
| Cost per month | About $8 to $12 depending on the package (our math from the listed prices) |
| Guarantee | 60-day money-back guarantee |
| Where to buy | Only through the maker’s website, with ClickBank handling orders |
| Made in | The United States, according to the maker |
The maker’s claims vs. what the evidence says
Septifix’s sales page makes some strong claims. Here is how each one holds up against what we could verify:
| Maker’s claim | What we found | Our take |
|---|---|---|
| Can “reduce, and in many cases, eliminate” the need to pump | No independent study provided. The Georgia Department of Public Health says additives will never eliminate the need for regular inspection and pumping. | Keep pumping on schedule. Treat Septifix as an extra. |
| Destroys E. coli, salmonella and other pathogens | No lab names or data given. Pathogen treatment in a standard system happens mainly in the soil of the drainfield, not the tank. | Don’t rely on it for health protection. |
| Eliminates odors in 3 to 5 days | Based on testimonials. The maker’s own disclaimer says testimonials may not reflect typical results. | Plausible for some tank odors; most indoor smells are plumbing issues it can’t fix. |
| Several times more bacteria than competitors | The site gives different multiples in different places and names no comparison test. | Unverified. |
| Independent labs found cleaner effluent | No labs or results are named. | Unverified. |
None of this means Septifix does nothing. Biological additives add bacteria and enzymes that break down organic waste, and University of Missouri Extension notes they are unlikely to pollute groundwater. The issue is that a healthy tank already has the bacteria it needs, so the benefit is hard to measure, and Missouri Extension cites findings that additives may cut a tank’s recovery time by only about an hour.
Who Septifix is for, and who should skip it
| A reasonable fit if | Skip it, or call a pro first, if |
|---|---|
| You want a simple monthly maintenance routine | Sewage is backing up into the house |
| You like the convenience of a tablet over liquids or powders | There is soggy ground, standing water or sewage over the drainfield |
| You keep up with pumping and want an extra for peace of mind | Your septic alarm is going off |
| You want to try it risk-free within the 60-day guarantee | You are hoping to skip pumping indefinitely |
A failing drainfield or a full tank needs a septic company, not a tablet. The Septifix testimonials that describe standing water over a tank disappearing are exactly the situation where you should get an inspection first.
Septic system backing up or soggy?
Those are signs a tank needs pumping or a drainfield needs repair. Talk to a local septic company before trying any product.
Calls are answered by a pay-per-call partner network that connects you with a local septic company. Calling is free; we may be paid for referrals.
How to use Septifix
- If your tank was pumped recently or is in good shape, follow the maker’s start dose: 3 tablets flushed down one toilet.
- After that, flush 1 tablet a month.
- If your tank is overdue for pumping, have it pumped first; adding bacteria to a tank full of sludge won’t empty it.
- Keep using septic-safe habits: less water at once, no grease, no wipes. See our list of septic-safe products.
- Ask your pumper to note sludge and scum levels at each visit so you can see for yourself whether anything changes.
Septifix vs. Rid-X and other treatments
| Septifix | Rid-X | Green Gobbler Septic Saver | |
|---|---|---|---|
| Form | Tablet | Pouch, liquid or powder | Pouch |
| Monthly dose | 1 tablet (3 to start) | 1 pouch for 700 to 1,500 gallon tanks | 1 pouch |
| Where sold | Maker’s site only | Stores and Amazon | Amazon and stores |
| Guarantee | 60-day money back | Check the package | Check the package |
| Replaces pumping? | No | No (the maker says so) | No |
See our full septic tank treatments comparison and our Rid-X review.
What customers say
The maker’s site features customer testimonials, and many describe odors fading within days. Its own disclaimer says those stories may not reflect the typical buyer’s experience, so read them as individual reports rather than proof. We haven’t found independent, long-term testing of Septifix. If you try it, the 60-day guarantee is your safety net, and your pumper’s sludge measurements are the most honest way to judge results.
Quick answers
Does Septifix work?
It adds real bacteria to your tank, and some owners report fewer odors. There’s no independent evidence that it removes the need for pumping or kills pathogens, as the maker claims.
Is Septifix legit?
It’s a real product sold through ClickBank, a large online retailer, with a 60-day money-back guarantee. Be skeptical of the sales page’s bigger claims and urgency language, and keep your receipt and order details in case you want a refund.
How long does Septifix take to work?
The maker says odors improve in 3 to 5 days. Any effect on sludge would take months to show up, which is why measuring at your next pumping is the real test.
Can I use Septifix with an aerobic septic system?
The maker’s page doesn’t give guidance for aerobic treatment units. Ask your system’s maintenance provider before adding anything.
Will Septifix fix my septic smell?
Only if the smell comes from the tank itself. Most smells inside a house are from dry drain traps, wax rings or vents. See why your septic tank smells.
Sources
- Septifix, official product page (claims, prices and guarantee as listed in October 2026)
- Georgia Department of Public Health, Additives and your on-site sewage management system (PDF)
- University of Missouri Extension, Septic tank additives debated (PDF)
- U.S. EPA, How your septic system works