It should be 3" minimum, preferably 4.
4"
The size of the water pipe from the meter to the house should be determined based on the water flow rate needed for the house. It is recommended to consult with a professional plumber to determine the appropriate size of the water pipe for optimal water flow and pressure.
I would use 3 inch for that.
3" house (building) drain allowable. 4" building sewer line needed for house from sewer main.
Depends on locality as many of the one family homes require I install sewer mains from 4" - 6". The size of the "sewer" is based on fixtures units that are connected and to local codes
because my a buthole is about the size of a sewer pipe... thats what 3 years in prison gets you!
Size of any drain is calculated by fixture units (7.48 gallons) and pitch of pipe with many codes giving a bare min sizes
Nothing as long as the pressure pipe is not used for potable water as you cannot make a direct connection and depending on the GPM flow what size the larger sewer pipe is as 1 GPM (pumping) is considered 1 fixture unit when sizing the drainage system ALSO make sure the pumps system enters at a right angle 45 deg so your not eroding the side of the larger pipe out
The yard drainage should be a catch basin where the inlet pipe is placed well above the bottom of the basin to allow fro the accumulation of mud and other debris to collect so it does not get into the system. The size of the inlet pipe should be predicated on the size of the plot being drainage L X W and the square footage then used to find the proper size pipe and then the storm line shall be protected with a trap prior to entering a combination system to prevent dangerous sewer gases from entering this storm line
The most common is 3" or 4" depending on the # of toilets in th home.
30 cm cheers broA kitchen WASTE pipe is 11/2" in many codes which is utter stupidity as the kitchen WASTE line does become reduced with grease and soap scum depositsIf the WASTE piping is going under ground to connect to the SOIL line (sewer piping) then 2" is strongly recommended as snaking an 11/2 line can be very challenging as the fittings are very short radius
Standard meter will suffice, need to know pressure from meter to house. Size pipe appropriately for gas pressure coming into house X distance to water heater. Gas company or plumber should be able to help with this calculation.