Compact Jr and connecting grey water drain

[Kath]

Where does one find the 1 3/4 inch connector to attach the drain hose from the trailer? All the connectors I have come across are 1 1/2 inch?? going nuts

[Byron Kinnaman]

I thought typical gray/black water connectors and hoses were 3" dia.

[Tom Trostel]

What Kath is talking about is a plastic piece that screws to the outside wall outlet of a Compact and has 1 3/4" female threads, then a L, then male hose bib threads. This allows the sink to be drained with a garden hose.