How to improve RV plumbing

Today I updated the freshwater plumbing attachment to my Chalet Truck Camper. The truck camper came with two hose attachment points for the city/fresh and the black water flush, each requiring you to attach the hose at each fitting. Additionally, you then needed to take the hose to the opposite corner of the camper to fill the freshwater tank. I wanted something much easier! So, I found a 3-way manifold and re-plumbed everything and it works great!