the ones you use for winterizing, city water, sanitizing, dry camping, after I am done winterizing the camper I let the pump pressurize the camper with antifreeze and shut off, then I turn each valve to let antifreeze pump through each one to eliminate any standing water
the ones you use for winterizing, city water, sanitizing, dry camping, after I am done winterizing the camper I let the pump pressurize the camper with antifreeze and shut off, then I turn each valve to let antifreeze pump through each one to eliminate any standing water