The lower weep hole exists to allow fluid to collect or drain out of the water pump to protect the bearing integrity. In a horizontal centrifugal pump there is little space between the bearing and the seal so fluid build-up could potentially threaten the bearing.
Definition of PETRI DISH. 1. : a small shallow dish of thin glass or plastic with a loose cover used especially for cultures in bacteriology.2. ADVERTISEMENT.Julius R. Petri â 1921 German bacteriologist.. : a small shallow dish of thin glass or plastic with a loose cover used especially for cultures in bacteriology. 2. ADVERTISEMENT. Julius R. Petri â 1921 German bacteriologist.
Deep Dish: An illegal set that is held excessively long, typically set from below the shoulders. 1  Dig: A defensive contact following an opponent's attack resulting in a playable ball. 2  Dime: A perfect pass. 3  Dink: A soft hit ball, usually around or over the top of the blockers.