Odors caused by a septic tank are a sure sign your system is in trouble or may be failing. Septic odors can originate from the septic tank, drain field or the toilet bowl in your home.
Over use of water can dilute vital coli form bacteria causing solids that usually digest in the septic tank to flow out into the drain field clogging leach fields causing odors and system failure. Toxic waste water can push to the surface over the septic tank and drain field causing strong odors and septic smells.
Septic tank odors can also be caused from the use of a water softener or anti bacterial hand soap. Both kill off bacteria causing solid and sludge to form in the septic system.
Perform regular maintenance and eliminate anti bacteria hand soaps from your home.