Wastewater adapters - he-ruide
If you have both a sink and a shower, you will need to connect both hoses together and then run a third hose to either a gray water tote or the sewer.  You can use either the brass Y connector (left) or a full volume Y connect with valves (middle). Because of the restriction cause by the valves, I don't recommend the normal "Y" connector (right)

If you have both a sink and a shower, you will need to connect both hoses together and then run a third hose to either a gray water tote or the sewer. You can use either the brass Y connector (left) or a full volume Y connect with valves (middle). Because of the restriction cause by the valves, I don't recommend the normal "Y" connector (right)