thanks for the quick reply alex,
i will order them now, my inline filter is having fun too , all the wires have come out,
bad luck follows me around, and to make matters worse i have misplaced my hand held tds meter.... so i just hope the water goes down to zero in the ususal way after a couple of minutes....
i am worried that although the worn filters are slowing the pure water process down,.. that it still goes down to zero... what a night.