How much desiccant is needed for a proper dry lay-up?

The correct answer is based on the guidelines for performing a proper dry lay-up of a system to prevent corrosion and moisture buildup. In this context, the correct amount of desiccant is essential for effectively absorbing moisture that could potentially harm the system while it is out of use.

For a proper dry lay-up, the industry standard typically calls for 16 pounds of desiccant per 1,000 gallons of water in the system. This amount strikes a balance between ensuring adequate moisture control and avoiding excessive usage that could lead to waste. Using 16 pounds allows for sufficient absorption capacity to manage the humidity levels and protect the integrity of the equipment or system during the lay-up period.

Other amounts listed would either underutilize or overutilize the desiccant, potentially leading to ineffective moisture control or unnecessary cost. Therefore, adhering to the 16 pounds per 1,000 gallons standard ensures optimal protection during the lay-up process.