Septifix Review (2026): Septic Tank Tablets, Claims and UK Rules

What is Septifix?

Septifix is a tablet you flush down the toilet to add bacteria to a septic tank. According to the official page, each 55 gram tablet contains more than 10 billion aerobic bacteria, plus nutrients to help them grow and an ingredient that releases oxygen, which the seller says helps break down sludge and reduce the smell of hydrogen sulphide. The product is sold through ClickBank, which is the retailer and handles payment and refunds.

This review is based on the official sales page and the ClickBank order page (checked on 30 October 2026) and on GOV.UK guidance for septic tanks in England. We have not bought or used Septifix, and we have not found independent laboratory or field tests of this specific product.

How a septic tank works (and what treatments can and cannot do)

A septic tank separates household wastewater: solids settle as sludge at the bottom, fats float as scum and the liquid flows on to a drainage field or soakaway. Bacteria already living in the tank break down some of the solids, but sludge still builds up over time. Bacterial additives aim to support that natural breakdown. They cannot remove material that does not break down (such as wipes, grit or plastics), and they do not replace emptying the tank.

What goes into the system matters more than any additive. Avoid flushing wipes, fats and cooking oil, and large amounts of bleach or harsh chemicals, which can harm the bacteria the tank depends on.

What the seller claims, and what we could check

• “Smells gone in 3 to 5 days”: the seller’s own claim and customer testimonials. We could not verify it.
• University research: the sales page mentions research with a university but does not name it or link to any published study.
• Pumping less often: the page suggests you can pump the tank less often. In England the rules say you must desludge at least once a year or as the manufacturer instructs. Follow the rules for your tank, whatever any product claims.
• “Kills disease-causing pathogens”: we found no evidence for this specific product, and it is not a reason to change how you handle wastewater.

Pros and cons

What UK septic tank owners should know

GOV.UK’s general binding rules for small sewage discharges in England say you must have the sludge removed before it goes beyond the tank’s capacity, at least once a year or in line with the manufacturer’s instructions, and that the system should be maintained as the manufacturer recommends. If your tank discharges to a watercourse, older septic tanks may need upgrading. Check the GOV.UK pages for the rules that apply to your system, and ask your emptying company about any additive before you use it.

Alternatives worth comparing

• Regular professional emptying and inspection: the one step the rules require.
• Other bacterial or enzyme treatments sold by UK septic tank suppliers, which may be easier to buy and return in the UK.
• Better habits: no wipes, fats or harsh chemicals down the drain, and spreading out heavy water use.

Our verdict

Septifix may suit septic tank owners who want a simple bacterial maintenance treatment and are happy to buy from a US seller with a 60-day guarantee. Treat the dramatic claims on the sales page with caution, keep up regular emptying, and follow the rules for your tank.

Frequently asked questions

Does Septifix replace septic tank emptying?

No. In England you must desludge your septic tank at least once a year or as the manufacturer instructs, whatever treatment you use.

How much does Septifix cost?

On 30 October 2026 the checkout showed $69 plus $9.95 shipping for 6 months, $118 for 12 months and $147 for 18 months. Prices are in US dollars and can change.

Can I get a refund?

The official page states a 60-day money-back guarantee. ClickBank is the retailer, so you can also contact ClickBank within that window.

Is it safe for my septic system?

The seller says the tablets are made for septic systems. We have no independent data on this product; ask your emptying company if you are unsure.

Conclusion

A bacterial treatment can be part of septic tank care, but it is not a substitute for emptying, inspection and good habits. If you try Septifix, keep the guarantee window in mind and judge it on your own tank, not on the sales page.