2. Heavier roller? Normally process grind the field surface only. No need to go deep into the soil. Because the soil below is already dense. The problem occurs on the surface of the field (earthworms are the culprit). The compactor that can be operated in our school is this size (5 tons) 6,500. If it is larger than this (10 tons) 8,500, it cannot be operated our school. Too big.Regarding the use of a heavier roller, the response mentions that the current compactor size (5 tons) is appropriate for addressing surface issues caused by earthworms. Using a larger roller (10 tons) is not feasible for your school due to size constraints and operational limitations.