Intermittent flows, over irregular surfaces, with suspended solids, LARGE SOLIDS, inside cast iron pipe? I’m not convinced.
Our local regional district has imposed a $1 per cubic meter sewerage addition to our water bill. This is on top of the fee for the water supplied to the house through a meter, and on top of our property taxes.
Those who are thinking that a septic tank is the answer are unaware that most municipalities that have sewerage systems have already outlawed septic systems: My folks had to fill their old septic tank with sand when the city forced them to hook up to the municipal sewer.
As for the ability to measure various sizes of semi-solid waste, a simple weigh scale system would be quite accurate. Think about it, if they can read you licence plate from space, or pick out an Al-Qaida cell-phone call with a satellite, measuring the flow of poo out your sewer pipe is child’s play.