0
1 1/2 or 2 inch. 2 inch is better because it give more venting for the drain.
The proper size minimum size is 2" and ideally there would be an air break which is not always practical with a 2" stand pipe.The "vent" is installed AFTER the trap to prevent air locks and 2" is used to allow the Volume to flow freely
What else can I help you with?
What size is the sink drain pipe?
The size of a standard sink drain pipe is typically 1 1/2 inches in diameter.
What is the recommended size for a sink drain pipe?
The recommended size for a sink drain pipe is typically 1.5 to 2 inches in diameter.
What size pipe for shower drain?
2"
What is the standard kitchen sink drain pipe size?
The standard kitchen sink drain pipe size is 1 1/2 inches in diameter.
What is the standard shower drain pipe size for residential bathrooms?
The standard shower drain pipe size for residential bathrooms is typically 2 inches in diameter.
What is the size of a sink drain pipe?
A standard sink drain pipe is typically 1 1/2 inches in diameter.
What is the standard shower drain pipe size for most residential bathrooms?
The standard shower drain pipe size for most residential bathrooms is 2 inches in diameter.
What size pipe should be used for a sink drain?
A 1.5 to 2-inch diameter pipe is typically used for a sink drain.
What is the standard washer drain pipe size for residential washing machines?
The standard washer drain pipe size for residential washing machines is typically 2 inches in diameter.
What is the recommended drain pipe size for a residential kitchen sink installation?
The recommended drain pipe size for a residential kitchen sink installation is typically 1.5 to 2 inches in diameter.
What is the recommended washing machine drain pipe size for optimal performance and efficiency?
The recommended washing machine drain pipe size for optimal performance and efficiency is 2 inches in diameter.
What is the standard kitchen drain pipe size for residential plumbing systems?
The standard kitchen drain pipe size for residential plumbing systems is typically 1 1/2 inches in diameter.
