Sponges Click on photos for larger image.
Bailers Unless survivors step dry shod from the ditched aircraft into the raft, it is inevitable that considerable quantities of water are going to enter the raft. Boarding from the water brings in plenty of water. Single tube rafts are worse than double tube rafts due to the lower freeboard. If the ditching occurs in a storm, or one blows in, even more water will collect in the raft. A leak or deflation can also introduce water into the raft.