Pettrix
Platinum Member
In a perfect world...
excerpt taken from one of the links posted above.
properly maintained on-site treatment system is more sustainable than the centralized treatment systems, said Stephens, whose consulting firm oversees construction of on-site systems.
He said municipal sewer systems dump more untreated sewage into lakes and rivers than all the septic systems in Michigan combined. State data support his claim."
Yes, the key being "properly maintained" private septic systems. Many go unchecked for years before the failed system appears. When someone installs the absolute smallest system allowed by law to save a few hundred dollars. Then they sell the home and instead of 2 people living there, now a family of 4 or maybe 5 live there. Which happens with a husband and wife with 2-3 kids. Now that 300GPD system is being inundated with 750 GPD. On a 1,000 GAL single chamber tank on just 80' of line, that system will fail within the first week of use. No way can it handle 750GPD but a family of 5 will easily produce that.
I've seen this happen and the only solution is to remove and replace the system with a large septic tank and field. Unfortunately the costs now are not just a few hundred dollars but thousands of dollars. So the system will remain and get overtaxed and fail.
Upsizing a concrete tank by 500 gallons is usually only a few hundred dollars during the initial purchase.
Upsizing the leach field line by more feet is again a few hundred dollars during the initial purchase.
Most builders will cut on the septic and upgrade to granite counter tops.
Out of sight, out of mind. Only when the smell and sewage backing into the home will the septic system come to light.