REVIEW of LONG RANGE TANK (Fuel and water) PROS AND CONS that I experienced

I NEEDED TO IMPROVE MY FUEL RANGE in my 4×4 so I decided to install a long range tank. I also needed to water on board for camping so decided on a combination Long Ranger fuel and water tank. The end result is mostly fantastic but I found a couple of problems. I have some ideas to solve them but can you help me with your ideas?