As I said in another post the other day I have spoken to experts in this field and they said it's fine up to 10,even if you have water at 000 ppb it's irrelevent and not needed. The eye cannot detect the difference between 000ppb and 10ppm after the water has dried on the glass so if people want to pay £200 for a sack of nuclear resin go ahead. A £2000 setup will produce exactly the same results as the Ionics new system after RO without resin attached to the setup so if you have a resin can on your static or in the van you have there over 10k + eqivelant system except you might not have all the bullpoop that comes with there's eh. One thing they can seem to do is sell snow to Eskimos,the thing that sells them is the look of them it's the same priciple as buying a car 9 times out of 10 we buy with our eyes