Automatic shut-off for a conduit fluid containment system

Apparatus for conducting fluids from a fluid source to a fluid receiver and for controlling fluid loss therefrom, said apparatus comprising:

• at least one conduit having an inlet end and an outlet end;
• at least one containment housing having a first end and a second end, said containment housing being sized and configured to receive at least a portion of said conduit therein, such that a containment chamber is defined between said outer surface of said conduit and said inner surface of said containment housing;
• a valve attached in fluid flow relationship to said conduit, said valve being adjustable from an open position, defined as when a fluid is able to pass through said valve and through said conduit, to a closed position defined as when a fluid is unable to flow through said conduit;
• a release engaging said valve, said release holding said valve in said open position;
• means for biasing said valve to said closed position being attached to said valve;
• an air vent formed in said containment housing such that when a fluid enters said containment housing at least a portion of the air is vented from said containment housing;
• and
• a block inserted within said containment chamber such that said block engages said containment housing and lies adjacent said release, said block expanding when said fluid enters said containment chamber to at least partially immerse said block, said expanding block operatively engaging said release so that said valve is moved to said closed position by said biasing means.