Septic Tank Systems Environmentally Superior to Sewer Systems.
Yes, Let me get that right our and I am right. Generally, people who do not know about septic tank systems will fight all day long. They do this instead of asking why septic tank systems are environmentally superior to sewer systems.
Let me dig into some 45 plus years of working and installing both.
I know how they both work and I know what exactly happens when a sewer system is built. Don’t get me wrong. There are methods for sewer system construction. These methods ensure the sewer treatment plant does not dump raw waste into the streams. From there, waste can go to bays or oceans for further processing. Environmentally sadly most designers choose not to go that route due to the money being spent on the system. I won’t even go into the municipal side of this.
So how do home septic systems work?
Waste comes out of the mainline from your home into the septic tank. The waste gets digested over time by Mother Nature’s best friend, Septic Tank Bacteria. Then the gray water enters your drain field or chamber system. It gets filtered back into a local water source. This is the circle of an environmentally friendly septic tank life. This is ideal. This filtered water goes back into deep wells to be used again. Without this, The price of water would go Thu the roof.
Sewer systems take wastewater from your home or building. They send it many miles to a sewer treatment plant. There, it gets screened and aerated. Then, it is pumped back to be screened and aerated again. The remaining wastewater is dumped into a local waterway, not back into a local well. Sewer Systems take water from the ground and never ever return it back to the ground. I won’t even go into the amount of electricity it takes to run a sewer treatment plant.
Now let’s get back to a septic tank system:
A septic tank system and drain field are owned, maintained by you. It also keeps your well water local. It gets filtered by Mother Nature and all you have to do is add septic tank bacteria once a month! I can only add one thing. The system must be designed for the home’s needs. That is it!
Septic tank systems are an environmentally winner no matter how you look at it.
Septic Tank Systems Environmentally Superior to Sewer Systems. by SepticTankBacteria.com

It’s good to know from your post here that the lifespan of the system is determined by several factors, including construction material, soil acidity, water table, maintenance practices, and others. I wanted to hire a septic service for our house here in Sterling Forest NYbefore we move back there. I think we won’t need so much work to do on it, but we just wanted to make sure before we return.