Another essential piece of septic tank information is to take care with choosing the cleaners and chemicals you use around your home. Your septic tank depends on ‘friendly’ bacteria to function properly, and the problem is that many disinfectants, bleaches and household cleaners are specifically designed to kill bacteria. To avoid septic tank problems, use organic and biodegradable household products wherever possible. Never put drain cleaners into the system – just a small quantity of these harsh chemicals can wreak havoc on the bacteria and cause septic tank problems. Many people wonder if Epsom salt is safe for septic systems. There are mixed thoughts about this. While Epsom salt doesn't cause damage to your septic tank, this doesn't necessarily mean you should go flushing it into your tank. Many individuals think flushing Epsom salt in their septic tanks will break down waste. While salts can unclog a toilet, the effect Epsom salt has on your septic system will be minimal. You'd need a substantial amount of Epsom salt flushed into your tank to see the acidic benefits.