So its ok for you the others to charge high import 100 =250% rates and the US 2-2/12 % ? Why don't you mention what the last presidency did to our country?
Major companies are coming back pumping billions of USD's into our economy, gas is now $1,90 gallon in some states. We are winning not loosing as you said.
The problem is that they do not install venting, all plumbing for sewage and grey water should be vented to the exterior, roof,by installing traps and teed into a venting pipe, but they seldom do. By teeing in to venting ting pipe 2" you will also have better drain flow. Methane sewage gas is detrimental to your health.
Air is one thing wastewater is the other. Seriously go after the polluters and hit them in the pocketbook heavily, that will get their attention. It needs to be done now