I have an insinkerator insta-hot water dispenser in which the water has gotten a funky smell to it.
The filter has been replaced, but the smell is clearly coming from the reservoir. I disconnected everything and drain the reservoir (in which the water definitely smells bad). What's the best product to clean this thing out? My water has a lot of minerals and a fair amount of rust in it, which was evident my examining the reservoir. So I can pour stuff into this thing, but what will dissolve all the crap that's in it?