Osmosis wrong ppm

Hi,

We are having a real problem getting the ppm down below 10. Yesterday before we moved the units we got a reading of 4ppm now it varies between 70ppm and 300ppm each time we use it. is there instructions online anywhere or does anyone know about this

We have tried to change the de-ironizing powder but no difference.

Any ideas?

Who is the manufacturer of the system?

Water Quality Association is what is plastered all over the units but nothing else. Thanks. (we managed to get the reading down to 10) I will post tommorow when my friend is here who knows a little more than me.

Thanks