Refer to table: The formula for determining the size of thrust blocks needed to install water mains is: thrust per 100 PSI = required area of the thrust block. Bearing load of soil = per 100 PSI of water pressure. What size thrust blocks would be required for a 6″ tee in sandy soils?

Refer to table: The formula for determining the size of thrust blocks needed to install water mains is: thrust per 100 PSI = required area of the thrust block. Bearing load of soil = per 100 PSI of water pressure. What size thrust blocks would be required for a 6″ tee in sandy soils?