cost installation fosse septique france
The cost of installation, which can be between â¬2,000 and â¬5,000 depending on the size of tank and the type of installation, must be taken into account in your budget. Make sure that a tank is large enough for the property in question, e.g. 2,500 litres for two bedrooms and up to 4,000 litres for five bedrooms.he cost of installation, which can be between â¬2,000 and â¬5,000 depending on the size of tank and the type of installation, must be taken into account in your budget. Make sure that a tank is large enough for the property in question, e.g. 2,500 litres for two bedrooms and up to 4,000 litres for five bedrooms.