rabbut
I don't bite, all that often...
Nope. Saafend is on a different supply to London.Fair enough. I thought you were on a London supply, but it would appear you have re-located to somewhere quieter (and colder I suppose?) recently, going by your profile....
The profile was for fun, especially as some members seem to be upset we don't have perfectly accurate info on there to enable any ID thief to start snooping.
I had guessed you had changed it as a bit of fun. Oh the issues of not using smilies, people can't spot a joke

Anyhow, to keep my post on-topic...
The idea of putting the waste into a header tank for a toilet e.t.c is actually a good one and fairly plausible I would have thought

All the best
Rabbut