Roger has all he can use for a fiver a week....that's when I can get him to cough up that is!...at the moment he is getting it for free!!!!!!! 
Ian
Funny that.
It started off as a fiver week, until you realised some weeks I only top up once or twice.
Last week I got water on wednesday and that was it.
On average I reckon it's 3 times.
Gone back to the old plan now you want money then? :
Strangely you're never there now... otherwise it wouldn't have mounted up.
As I'm no longer with my wife I am not really going to be there much, but you can always leave the money with her, getting the money to me is not a problem.
And as I (and you) now realise, you are getting something of a bargain, plus as I now have someone working with me, keeping us all with plenty of water is proving a little harder, ergo I might have to upgrade my system, possibly to a 4040 RO (check out the prices...they are not cheap!)
All the hassle of maintaining the system is mine, all you need so is turn up & fill up.
In fact I've had a couple of hassles over the last year or so that would have had you wailing on the forum!! They cost me a couple of days work in lost time, none of this has impacted on you (well, actually it did, but I don't think you noticed

).
Ian