I have been keeping my resin in a plastic box outside in garden in a plastic trunk. I noticed my TDS was not getting to 000ppm, even after changing filters and membranes with brand new ones. I then noticed my resin was slightly damp in the box from condensation. So i took the resin inside my house and took the lid off to dry it out. Back down to 000ppm again now. Where do you keep your spare resin, inside or outside and does getting it slightly damp kill the resin quality. I think it does from my experience ?