In two minutes, it is full, ready for the next patient in his newly created emergency heatstroke unit at the Dr Ram Manohar Lohia hospital in New Delhi.
The point, he explains, is speed. Heatstroke patients need to be dunked in the bath the moment they arrive at the hospital if they are to stand a chance of surviving.
"Time is life, time is tissue," said Yadav, the head of emergency medicine. "It is imperative to bring a patient's temperature down fast and this is the quickest way. That's why the water pipe is big, so that the 250-litre tub fills fast, and why the ice-making machine can make 50 kilos of ice."
The hospital has seen well over 50 heatstroke patients in the past week. People in Delhi and much of north India have been battered by temperatures of 40 degrees or more every single day since midMay. March was the hottest month ever recorded. At the start of June, Delhi recorded its highest ever temperature, with two weather stations in the capital reporting 49C (120.2F) and 49.1C (120.38F).
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