Yes, septic tanks effectively break down solid waste that settles at the bottom of the tank while the liquid waste gets filtered and let out into a leech field where it is further filtered by the land. However, proper maintenance and repairs must be performed to ensure that it can continue to effectively treat wastewater during its lifespan.

The average residential septic tank should be pumped every three to five years. The exact timespan between pumps will depend on the size of the tank, the number of people in the household, and the type of septic system you have.

Yes, you will need a building permit to have a septic tank installed. The pricing of permits varies depending on where you live, but they range from $200 to $2,000. They also need to be renewed every few years.

This will depend on your local and state regulations. Check your local permitting office, like your local health or environmental protection office, for the exact regulations that are in place for your area.

The best septic tank system to use for your property will depend on several factors including lot size, ground slope, soil conditions, state and local regulations, and your budget. Consult with your local septic tank company for help determining which is best for you.