There is more pressure on the sides of the tank the lower you go on the tank. I assume the hoops you are referring to are the ribs in the side of the tank. More ribs means more strength.
The hoops of tanks are closer together near the bottom part to provide additional support and reinforcement to the tank structure. This design helps to evenly distribute the weight of the tank contents and prevent bulging or deformation of the tank walls under the pressure of the liquid inside.
Bottom of the air tank. Used to drain the water in the bottom off the tank
The water sinks and pools at the bottom of the tank
The water sinks to the bottom. If your pick-up in near the bottom your engine will quit. You will need to drain the tank.
I gently syphon the water out from the bottom of the tank into a bucket, thereby removing the mulm and poo that have accumulated on the bottom of the tank. Then I use the dirty water to water pot plants etc. I top up the tank by syphoning water that I have heated and prepared with chlorine neutraliser back into the tank from the bucket.
food flaots
The cold water supply enters the tank at the bottom near the burner. Heat rises, as does hot water. The hot water supply is piped out from the top.
c-34.3kpa
You will get warm instead of hot water. There is a tube inside the tank on the cold side that goes to the bottom of the tank and the hot comes directly from the top. Reverse them and you are going to get the cold water that settles to the bottom of the tank. It will not hurt the tank or anything, it just makes for poor hot water.
The water is pumped for a certain time, as the water is pumped from the bottom tank to the top tank and we get our water for the day from the top tank only.
Cold water is supplied to the bottom of the hot water tank to prevent mixing of cold and hot water. This ensures that the hottest water is at the top of the tank where it can be drawn for use, while the cold water enters at the bottom to be heated by the heating element or burner. This also helps in creating a convection current within the tank for efficient heating.
settlement from bottom of tank