It's a class C, which is roomier.
And I can tow a car behind to run errands.
I have been debating downsizing to a class B, but it has to be a larger one with dually rear wheels, and also with towing capacity. A new one is pricey at a low six-figure price, and used ones are not cheap either.
I do not keep water in my motorhome when it is parked, and wonder how long the water will keep. I would over-chlorinate it to be safe.
Before taking the motorhome on a trip, I sanitize the tank with bleach, and flush it. I use a cheap Brita filter during the trip for drinking water, even though I fill the tank with potable water.