The present invention relates to a wastewater valve arrangement. The valve arrangement includes a first receptacle for receiving a filter to filter wastewater. A second receptacle receives the filtered wastewater. A valve is provided for impeding the egress of filtered wastewater from the second receptacle. In one embodiment, the valve is configured to be normally open, and is configured to permit the release and ingress of air relative to the second receptacle. The valve may include a float that defines a recess.