Cause of septic tank odor? The causes of septic tank odors can range from a dried out “P” trap drain under your kitchen sink or a bathroom vanity sink drain. Buildup of bio mat in the septic tank or drain field will also produce septic odors. Septic odors typically are a direct result of a septic tank full of solid waste in need of pumping. Septic tank pump outs range from $175.00 to $600.00, depending on geographical location and the size of the septic tank.
Other causes of septic tank odors can range from a clogged septic vent located on the roof of your home to an over use of shower water or a heavily used washing machine. Over flooding of the septic system will result in water forced to the surface saturating the area over the drain field resulting in spongy grass and strong septic tank odors.
Lack of beneficial bacteria do to the use of anti bacterial products, paints, out dated medication and toxic solvents all contribute to the breakdown of bacteria resulting in a lack of digestion causing bio mat buildup and septic tank odors.