Im going to lift the top on my HA806 tomorrow and clean inside the cavity of the machine and also the top of the tub. Whats the best way to remove the hardened soap scum off the top? Im simply going to spray LA's Awesome inside the machine and give everything a wipe down, maybe lube the motor slides as well. Then after wipe it all down with WD-40 for extended storage to prevent rust although its very dry here in my apt.