I have one and you change the nuclear resin once you have used 4 normal resin filters so change it about twice a year cost about £165 a year.
Love the system whether you get better results with it still undecided, what I would say as ionic used it as a good marketing tool to sell systems and I know they have sold loads of them when quoting for new business we add the fact that we use parts per billion and as most have not got a clue what that means but it makes you different from the rest and we have got loads of new work from it
As for the cost by the time you take off the vat, tax relief the cost is very small especially as most on here are earning £200 a day or they wont get out of bed
We will be looking to add another system at the beginning of next year and it will be a ppb
Martin