Gravity Water Fill

Part of the problem I'm trying to solve is also time to fill the tank. When using the regular fitting there is some type of pressure valve in there that limits the water flow and pressure into the RV system, but it also limits the amount of water that flows into the tank when trying to fill it. Although I've never used a stop watch on it, it probably takes at least 30 minutes, maybe more, to put in 100 gallons of water from empty. I usually just turn on the water and wait for it to come out the overflow and turn it off, but I can't tell you how many times in that 30 minutes I've forgot about it and walked away only to flood out a campsite or my driveway. So that's the real problem I want to solve. The second issue is being able to dump water directly into the tank. I've tried the water pumps in the past and it worked fine until my pump gave out one day and I've never replaced it.