Adapter systems

An adapter system comprising:

• an adapter having
• a body defined by
• a proximal end;
• a distal end;
• a ring seal to provide sealing means;
• and
• a through-hole;
• wherein said proximal end comprises external threads on an outer circumference and a smooth inner circumference;
• wherein said proximal end is integral with said distal end;
• wherein said distal end is stepped with a step, said step comprising inserts on an inside peripheral surface and locks, said locks comprising channels and a smooth outside peripheral surface;
• wherein said adapter is configured for use in functional conjunction with piping to connect an rv to a wastewater dump;
• wherein said body comprises pvc;
• wherein said locks allow locking to occur with said piping;
• wherein said external threads allow screw-threading-coupling and screw-un-coupling with and from said piping;
• wherein said locks run parallel to said body and provide wrench grips;
• wherein said locks are arcuate;
• wherein said locks conform to said outer circumference;
• wherein said locks alternate between small said locks and large said locks;
• wherein said small said locks comprise a width equal to that of said large said locks;
• wherein said small said locks comprise a length less than that of said large said locks;
• wherein said small said locks are located adjacent said inserts;
• wherein said small said locks each comprise a stop;
• wherein said inserts comprise straight-walls and non-straight-walls;
• wherein indicator arrows are included to provide indication means to insert a bayonet fitting;
• and
• wherein said inserts comprise different size openings from said distal end.