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Cast Iron Baseboard Pressure Testing
I have some CI baseboard that I am installing, being reused from another location. I am re-assembling sections that were broken apart into sections for transport and will simply clean up the nipples, add some dope and re-combine the sections. My plan is to plug up the sections and pressure them to around 15lbs and see how long they can hold (air). My question is:
Is this sufficient? If there's a slow leak, would it be fine if over 8+ hours? Should I test with a higher pressure? Looking for some experience on what is acceptable or a red flag - thanks all!!