HDPE same floor drainage system, can be used in the kitchen / bathroom sanitary ware drainage pipe (sewage cross pipe and water branch pipe) are not across the floor into other households. Kitchen / bathroom drainage system is a novel technology, drainage pipes laid in the layer, the use of a *** with the water seal pipe fittings instead of many P bend, S bend, the overall structure is reasonable, so it is not easy to clogging, and easy to clean up, unclogging, the user can be based on their own preferences and wishes, personalized layout of the bathroom sanitary ware location.