What should be the minimum wall thickness of lead bends and traps?

The minimum wall thickness of lead bends and traps is determined primarily by the need for durability and resistance to corrosion while ensuring they can withstand the pressure and stresses they may encounter in plumbing systems. A wall thickness of 1/8 inch is adequate because it provides sufficient structural integrity to prevent deformation or damage while allowing for the flexibility needed in the plumbing system.

Choosing any thickness greater than 1/8 inch, while it may seem beneficial for strength, can lead to unnecessary material use and added weight, which may not be practical in all installations. Conversely, a thickness less than 1/8 inch would compromise the longevity and reliability of the plumbing fittings, making them susceptible to leaks and breakage. Therefore, 1/8 inch is the optimum choice balancing strength, weight, and functionality for lead bends and traps.