the intent was to use the washing machine supply hose as a ready made short section of hose that already has a standard hose bib thread...my water heater drain is not easily accessed because of its location... remove the supply hose from supply faucet and from the washing machine... attach it to the drain faucet (mine has a hand valve)on the hot water tank... open a water spigot in the house to relieve any vacuum in the hot water tank... this presupposes that you occasionally flush your hot water tank to remove sand that builds up in the bottom