Sry Ian 

 I dont use the chat part of this site as as far as I know no other person does so would be a waste of time, was just relping to what others wrote.
As you say you deleted several posts do you fancy telling me and others why, because if you dont I will not know what I did wrong  and nor will others :

Nice to get told off on my day off (play with new system) 

I will relpy to my nightmare day but I am just hoping that does not happen today, I have water going in my tank seems to go in very quick have  to work out how to test the tds, how do I do this anyone, just dip the handheld in tank?