Over the years, there has never been any negative feedback regarding the regular use of TechnoFresh with standard septic systems.
Our customers are smart and vocal so we would have heard.
However, you can not use TechnoFresh with any waste system that has a “gray water discharge” of recycled water for irrigation. You must connect to a standard septic waste treatment system or the city sewer.
Also, the whole procedure from above can stress a septic system as would repeats of any of the commercially available shock treatments.
Those who think they have a marginally performing septic systems might consider adding Rid-X (or equivalent enzyme helper) to the system 7-10 days after the end of the "shock treatment" process. TechnoFresh and any other chemicals will have significantly flushed out of the digester tank by this time.
The stress to the septic digester is mainly from the large amount vinegar and salt that is used with multiple shocks-- not the Technofresh®.
While not endorsing the product, here is a link to Rid-x for information about septic systems