Fresh water and sewer
New camper newb here! Anywho, we used the camper for the first time this past weekend. The campground we stayed at did not have water hook up (did not know this at the time) so we had to use fresh water tank and filled it up before we parked. I did not sanitize the tank before use but we did not use the water for drinking, just dishes, washing up and toilet. What is the process for sanitizing? Is it required on a new coach? Also is there some chemical or whatever that I should be adding to the sewer tanks? Our rig did come with a black tank flush with which you connect a hose to and let it run. I did notice it took a while to get "clean" water coming out of flex pipe. It says you need to have the valves open to use the flush system? Any info would be helpful as this is my first ever coach.
2015 Keystone Cougar 29ROB (wait, can I still be on here??)
TV: 2016 Ram HD 6.4 Hemi 4.10s dual exhaust