Hi, welcome to the forum! I did this too my first time. Not to fear. On our newer unit, The "Normal" valve setting is for when you're dry camping and using the pump to deliver water to the faucets. For filling the fresh water tank, you've already stated that you've done it using the "Tank" position. For hooking up to park water use the "City" selection for the valve. Mine points straight down in this position. A good idea is to have a pressure regulator and filter in place. Some like them "upstream" at the park hose connection to keep the hose and everything after, protected. Park water supplies can be a bit cantankerous at times.