I've mounted my r/o to a trolley so it can be bought in.also i have undone the pipes to the pump so there is no water in there to freeze.Tank i cant really do to much with but it is boxed in the only thing at risk is the di vessel Does anyone know if it will cause damage if the resin freezes? i have opened the screw at the top of the vessel so if it freezes it wont crack the vessel but will it damage the resin?