Plumbing my box truck.

Okay. I am transferring equipment from my open trailer over to the box truck. I had a cold water unit on the trailer and I am adding a hot box to the truck. On the trailer I had 2" plumbing running from tanks and then cut it down to 1" that dual fed the pump. Now that I am going into the truck with the hot box I am not sure what the best route to go is. I figure I will still come off the tank with 2" and run that towards the hot box. I am thinking that the hot box is only 1/2" inlet. So I guess I will need to choke the 2" down to 1/2" to the hot box. From the hot box to the pump I want to dual feed like I did on the trailer. So should I stick with the 1/2"?

Also with the line from the tank to hot box the inlet sits up a couple of feet on the hot box. Will there be enough gravity pressure to push the water up and into the hot box? I have a 1500 gallon tank but not sure how low I can run the tank before it wont push it up to the hot box. Of course I guess the pump will provide suction helping that out. Any thought? This is my first hot box so just want to get it right. I will also have a filter plumbed in at the inlet of the hot box.

Ha! Stupid me. Water goes from tank to pump then hot box. Who knew. My first hot box..

That sounds like a heavy set up Roy. Love to see some photos of your set up as I am looking for a new box truck and looking for other options. Thanks!