Number 1 Septic Treatment Brand. Help Keep Your Septic Tank System Functioning Properly with RID-X. For septic tank owners who care about maintaining their system, RID-X is the septic system treatment that gives you peace of mind by continually helping to maintain a free-flowing system. RID-X is the trusted expert and is scientifically formulated with special bacteria and enzymes to digest household waste. By adding RID-X to the septic system every month along with regular pumping, you can help prolong the life of your septic system.