We’ve hit a snag with the installation of the Water Two valve that we’ve been so excited about.  The grey-water pipe that we had planned to fit it too is a "dead" pipe with no water flowing through it, and the pipe that carries the basin- and bathwater is too short to attach valve.  So, we need to extend that pipe, reduce the height of the hopper, and then fit the Water Two.  This won’t be happening for at least a few weeks, hence the need to start siphoning bathwater into the garden with a hose.