JAS_OH1
Forum GOD!
In the US, 180k people isn't a town. I grew up in a town that once was about 40k.We have two "systems" for sewage waste. One is a dual cesspit which requires emptying regularly; the other a twin septic tank which requires emptying rarely. We would have preferred two septic tank systems but space at that side of the house was restricted.
The twin cesspit design is the same as above but without the outlet to the soakaway.
I believe that only the cities and major towns have a piped sewage system. Our local town of around 180,000 inhabitants does not.