A contractor is installing the discharge pipe for a water heater T&P relief valve. According to code, where must the discharge terminate, and what is the required height range above the ground or floor?

• To a laundry sink, no specific height requirement
• To a sump pit, at least 12 inches above the pit rim
• To a floor drain, between 0 and 6 inches above the floor
• To the outside or an approved receptor, between 6 and 24 inches above ground/floor