The gray water pipe is UPVC .
Toilet / piping to and from the toilet and sinks and tubs and showers
Precipitation that sinks into the ground is called Groundwater.
A baffle tee is a Plumbing part used on residential and commercial sinks. This is basically part of the piping that connects the sink to the outside water source.
It depends...If you currently have only one sink, you may be required by city code to have the water company install a larger main meter in front of your house (depending on how many water usage devices you have in total for your house). As far as a "do it yourself" project, you may want to hire a qualified plumber as the copper piping can get tricky. The repairs in the wall where the piping will also be an issue once the project is complete.
A baffle tee is a plumbing part used on residential and commercial sinks. This is basically part of the piping that connects the sink to the outside water source.
subsidence
That would depend on lots of factors. When I bought my current home, there was no copper pipe in it, it was all galvanized. Many modern homes have PVC piping in many places. And how many bathrooms are there? How many kitchens? Sinks? Washing machine? Dishwasher? Swimming pool?
Is called "ground water".
Get off the internet.
Why are no sinks on Biltmore house bathrooms
i think that its subduction ...
Information about copper bathroom sinks can be found on sinks store websites such as Sinks or CopperStore. There is also a website dedicated to offering advice to those considering a copper sink, called AboutCopperSinks.