THEY WERE DISCONNECTING 6"" WATER PUMP HOSE - THE WATER WAS NOT PUMPING; WATER GOT HOT. WHEN THEY DISCONNECTED THE DISCHARGE HOSE AT THE BOTTOM END, 20 FT. FROM THE PUMP, WATER CAME OUT AND BURNED EE ON HIS MIDSECTION, LEGS & ARM. SKIN GRAFTS REQUIRED ON ABDOMEN & ARM.