If public sewer system is not available in your area then you will have to install a septic tank and to install a septic tank means extra money. It is not cheap and if we you have got a limited budget then there are a lot of aspects that has a direct impact on its cost. Septic tank is needed to dispose all the wastes from the toilet, kitchen sink, bathroom drains, dishwasher, washing machine etc. Apart from its installation it also needs maintenance. It has to be pumped out at least once every year. The cost for installing and maintaining depends on the size of the tank. The tank size will depend on the amount of household waste that will be disposed into it. It is very important to install a size according to the amount of waste discharges or else it will have to be pumped out frequently which means more maintenance cost. Also make it a point to install a septic tank of a reputed brand if not it will be of poor quality and will lead to breakage and overflow. A large tank will cost more but it will help you reduce the maintenance cost.
The two types of septic tanks that you can install are above ground ones and below ground ones. The above ground ones are cheaper and easier to install than a below ground septic tank but the above tank ones need to be emptied more frequently. Moreover below ground tank is the only option you have if you have a limited space. The material of the septic tank also is a determining factor of its cost. Analyse your requirements and your budget and choose a septic tank accordingly.