Wastewater Tote & Fresh Water Containers - Do you use them?

I use to carry two 6 gallon Aqua containers but now I use a 40 gallon fresh water tank in the truck and pump the water to the trailer. For gray water I use three 5 gallon orange buckets with lids. My black tank is 45 gallons and will last a couple weeks then we take the trailer to the dump station.