The THE PIRANA SOLUTION solves the problem of biomat clogging simply, easily and inexpensively, without the need for machinery or equipment, and little or no landscape damage.

The Pirana is not mysterious or difficult to understand. The problem is that the bacteria in our bodily wastes don't die when they end up in a septic tank. They then leave the septic tank in the liquid leaving the tank and end up in the disposal field. They don't die there either. The real issue is often mentioned in today's headlines; the introduction by man's activity of "alien or foreign" Non Indigenous Species (N.I.S) into new environments and ecosystems. Water Hyacinth, Zebra Mussels, Fire Ants, Starlings, Gypsy Moths to name a few. Each N.I.S. that establishes a foothold in its new environment has one common effect. They overwhelm existing species in their new environment because there are no biological controls on their population. Nothing living eats, kills, or inhibits their reproduction or spread. This is exactly the problem with intestinal bacteria in the disposal field.

Once a N.I.S. establishes itself in a new environment, it is too expensive to use chemicals, traps or filters to remove them. Unless a biological control can be found, something to eat or inhibit the N.I.S., there is nothing truly affordable that humans can do to stop their spread. The intestinal bacteria in the disposal field are in fact a N.I.S. The community of soil microbes never encountered the man made environment of a disposal field, or the intestinal bacteria arriving there on a daily basis. The result is the microbial soil community cannot compete with them. The ever increasing numbers of intestinal bacteria invade and clog hundreds of cubic feet of soil in and around the disposal field until the hydraulic capabilities of the soil is of the disposal field is so impaired that liquid can't leave the septic system as fast as it is put into it. The Pirana solves the problem of the intestinal bacteria being a N.I.S. by providing a simple, robust biological control.


The Pirana is a simple device and is simple to install. The Pirana unit merely sets on the bottom of your septic tank accessed through a riser and connected to a remote 40 watt air pump in a water proof basin or housing using ½ inch PVC pipe. Add the patent pending Pirana Blend "bacteria stick", connect the air pump to an electrical supply and turn it on. That's it. One annual inspection a year is normally all that is required. See the Certified Pirana Installer for a Maintenance Agreement.

The patented Pirana and Pirana Method is essentially an aerobic incubator to grow a few common species of aerobic leaf litter bacteria, using the organic waste in your septic tank as their food. These bacteria are found every where around the world. They are "facultative anaerobically". "Facultative" in this definition means they are aerobic bacteria that can change their metabolism when removed from an environment containing atmospheric oxygen, to a metabolism that allows them to survive for four or five days without oxygen by scavenging (removing or reducing) the oxygen they need from oxygenated molecules (with oxygen atoms). Biomat is a highly oxygenated molecule. The Pirana Blend bacteria multiply, leave the Pirana unit and become suspended in the liquid effluent and leave the septic tank entrained in the effluent and travel to the disposal field.

In the disposal field, the Pirana Blend bacteria reduce the oxygen atoms from the biomat molecule, break up the slime, reduce its viscosity and restore the soil's ability to absorb liquid. Equally important, the biomat is the matrix in which the intestinal bacteria live. Without the biomat, the intestinal bacteria can't survive in the disposal field. The Pirana is a simple biological control for the intestinal bacteria (N.I.S.) in disposal field soils. As long as the Pirana is operated and maintained in the septic tank, disposal fields cannot fail from Biomat clogging. The problem is biological. The solution is biological.


Keep in touch with current information on our

We're trying to explain it!
Whether you've never looked into septic systems, or you're a veteran to septic systems, our goal is to put you at ease with your decisions. Information that you can understand is the means to that goal.