The answer to 'which is better septic tank or' is that septic systems and sewer systems both have their own advantages and disadvantages, and the better option depends on the homeowner's specific situation and location. Septic systems are generally better suited for rural or suburban areas with larger lots, while sewer systems are more common in urban and densely populated areas.
Septic systems require more maintenance, such as regular pumping and inspection, but can be more cost-effective in the long run, especially for homes not connected to a municipal sewer system. Sewer systems often have higher upfront costs but require less ongoing maintenance from the homeowner.