what has to be done to save the Cruz family’s tangerine grove from the frost. How does Paul help?

After school Wayne gives Henry and Paul a ride over. When they arrive they see that there’s ice all over the Golden Dawn trees. Paul doesn’t understand, but Wayne tells him that they spray the trees with water to encase them with ice, because the ice keeps them at 32 degrees. If they go any lower, they die. The ice acts like a protection. But they don’t have the ability to spray all the trees because they need pumps that take diesel fuel, which is too expensive. It’s also risky because the ice has to stay slushy: if it freezes hard, the trees can crack. Paul helps the family by spraying the trees with a manual water pump.