Lisa helped me haul the cooler out to the patio, where there is a power outlet. It has wheels, but there are steps between the living room and the patio. I poured in the cooler-cleaning solution, which is supposed to remove a bunch of the hard water build-up, and let the pump run for an hour or so. You can see how much hard water deposits we get in just a short few months of use. Compare what the grille looked like after the last cleaning and repainting. The side grilles are worse.
I reckon I'm going to have to go buy more CLR solution, pull the grills off, and scrape it down again. Cleaning the pads is also a problem as there is no tub large enough in which I can soak the things. I have a little bit of hope that it will be a little easier to get the calcium build-up off this time. Also, there is very little accumulation inside the cooler, as opposed to all of the crud we scraped out of it back in May.