Well I do recall that you are supposed to push a piece of hose over the end of the petcock. But you can change that stock petcock and put an angled brass valve on the drain. Eliminate the stock drain petcock. Or just live with it. The angled brass petcock can have a short fitting or hose attached and that way you can drain it neatly. How is the project coming along? Do you need that stud yet? Good Luck.