what it boils down to then , is that after the two parts had been mixed together and partially hardened , a small blob had been placed over one side of a pipe that had had a line of minute holes drilled in a manufactured dent , sealing them , and as it quickly dried a small tie-lock plastic fastener had been wrapped around it , holding it in place , and although it was virtually dry when it was tested with hydraulic fluid under pressure , fluid had impregnated it slightly thats how we can say that it came from the pipe .