Do you mean the old black alkathene? Yes it can and should be.
Yes, PEX pipe can be buried underground as it is commonly used for underground water supply lines.
Yes it should be
Yes.
24 inches.
24 inches.
Black pipe is an amateur term for common steel or iron pipe.
Yes, black pipe, typically used for gas or plumbing, can be buried underground, but it must be done according to local codes and regulations. It's important to use the appropriate type of black pipe, as some are not rated for underground use. Additionally, proper installation techniques, such as ensuring the pipe is at the correct depth and protected from physical damage, are essential for safety and longevity. Always check with local authorities or a professional before proceeding.
You need to give more info than simply "rigid pipe". What kind of "rigid pipe", what pressure will it have and where you are burying it.
a black pipe can not be used in plumbing.Of course black pipe has many used in "plumbing" gas fitting and steam fittingPneumatic lines are specified as black , Fire suppression systems black pipe, gas piping , oil supply , steam and hydronics black pipe
Bi pipe is a black iron pipe.
Sir Walter Raleigh was buried with a pipe and tobacco. His coffin was also "lined throughout with the wood of my old Havana cigar-boxes."
Black of course