OK, I followed another posters advice and installed a smaller filter
From pure water products, reason being it is cheaper to change out the smaller filter, although the CR replacements , you can buy a bag of resin, no need to change the whole filter. Anyways tomorrow I will be able to see if there are any white water spots. My first wash last month left lots of water spots on the door sills, engine compartment, hatch, etc. it appears to have none at all. Once again, tomorrow I will inspect closer.