Septic tank first aid kit is specially designed for households suffering from serious septic tank blockages and who want to get the septic tank back into operation. It contains two 100% organic products: Roebic K57 and K37. Roebic K57 is suitable for troubleshooting overloaded full septic tanks. Roebic K57 provides a concentrated attack on overloaded areas, allowing the septic system to return to a usable state. After the septic tank problems have been solved, the (preventive) maintenance of your septic tank can begin. Roebic K37 is the product suitable for preventive maintenance of the septic tank. These bacteria cultures accelerate the decomposition of toilet waste in the septic tank. Stench, clogging and not going through the toilet are thus (again) prevented. These very specific bacteria reduce the smell, but also reduce the probability of the tank filling up.