The closest conflicts I have seen is varying codes required and there is usually clear language to use the strictest code. For example one code might require piping with 1/8” thickness if it holds water at X pressure and another will requires 3/16” thickness if that water is going to have a chloride content above X amount so you if it meets both you use the 3/16”.
The closest conflicts I have seen is varying codes required and there is usually clear language to use the strictest code. For example one code might require piping with 1/8” thickness if it holds water at X pressure and another will requires 3/16” thickness if that water is going to have a chloride content above X amount so you if it meets both you use the 3/16”.