How much slope toward the tank should be allowed for each linear foot of piping?

The correct answer indicates that a slope of 1/8 inch per linear foot of piping toward the tank is recommended to facilitate proper drainage and minimize the risk of liquid accumulation in the piping system. This slight incline allows for effective movement of any potential condensate or liquids back toward the storage tank, which helps in preventing corrosion, clogs, and potential leak conditions.

It is crucial to maintain this specified slope in order to comply with safety regulations and operational efficiency. A slope that is too steep could create excessive pressure points or stress on the piping system, increasing the risk of failure. Conversely, a slope that is too gentle might not effectively drain liquids back toward the tank, leading to hazardous conditions. Therefore, the 1/8 inch slope per foot strikes a balance that both meets safety standards and ensures the reliability of the system.