A waste hose seal apparatus provides a rodent and pest barrier into the service compartment of a recreational vehicle. The apparatus includes a seal assembly having a first section which snaps into place within the circular opening of the access port into service compartment, the seal assembly remaining in place by an interference fit between a circumferential edge surface of the seal assembly and an inside edge of the access port bushing. The seal assembly may also have an interior section having a domed configuration with an oculus defined by an inside edge surface configured to seal against an outside facing surface of the waste disposal hose.

The invention relates to a vacuum wastewater device, a vacuum wastewater device arrangement as well as a method for removing wastewater from a wastewater reservoir. The vacuum wastewater device comprises a vacuum wastewater device inlet fluidically connectable to a wastewater reservoir, a vacuum wastewater device outlet configured to be supplied with vacuum from a vacuum unit, a valve unit arranged between the vacuum wastewater device inlet and the vacuum wastewater device outlet, an electronic control unit configured to control the valve unit, thereby controlling a fluid flow from the wastewater reservoir through the vacuum wastewater device, and a first sensor arrangement configured to detect a pressure inside the vacuum wastewater device as a first value. In addition, a second sensor arrangement is provided configured to detect a second value related to the vacuum wastewater device.

A drain pipe system having a drain pipe assembly including a connector bushing, a first straight coupler, a reducing coupler, a second straight coupler, and a 90 degree elbow; wherein the connector bushing, the first straight coupler, the reducing coupler, the second straight coupler, and the 90 degree elbow are coupled in respective series as the drain pipe assembly configured for connection between a recreational vehicle and a wastewater collection system.

A telescoping RV (Recreational Vehicle) sewer hose support to provide continuous rigid support, hose guidance and the proper drain angle for the RV sewage drainage. This support includes inner sliding tubes for varying connection lengths and flexible hose bend supports with pivots and swivels to accomplish almost every angle of attachment. When combined with an RV flexible sewer hose, the sewer hose support and hose will provide a fully captivated, all-in-one gravity drainage solution that can be easily setup or stowed away.