Note that they had issues just pulling a simple communications cable, I can't imagine that a 2ft diameter rubber tube is going to be easier. However, attempts

Note that they had issues just pulling a simple communications cable, I can't imagine that a 2ft diameter rubber tube is going to be easier. However, attempts to install the cables have been unsuccessful so far, Maj. Gen. Bancha Duriyaphan said. One cable suffered water damage as divers transported it "around small passages." Teams are attempting to take in a new one. https://www.cnn.com/2018/07/04/asia/thai-cave-rescue-intl/index.html https://www.cnn.com/2018/07/04/asia/thai-cave-rescue-intl/in...