From looking at the latest offerings from swift and bailey, and from reading the posts above it appears that once again the caravan industry has gone backwards?
For £18000 plus now you are expected to get down on your knees and prat about with levers or switches?
While on my 2004 senator all i do select inboard or outboard via a selector switch a waist level, as mentioned above.
This "old" system has the benefit of a separate pump for each tank, so if your pump fails you simply switch over.
More than once i have been caught part way through a shower only for the tank to empty, sloppy maybe, but a call to her in doors and it is sorted with a flick of a switch.
Now i can visualise the nightmare of trying to explain which position she needs to place the lever/levers in, the water drain lever position often confuses!
And now the capacity of the on board tanks have shrunk, what is the next improvement?