For which purpose will you use the pressurized water tank? If you want to get pressurized water, the water pressure is proportional to the height. So you should let us know what you want to do first. Simple is the best. For example, if you want water to flow fast by pressure, please use the equation in the attached file. Please inform us.
my purpose to pressurized water inside experimental closed loop to work with different pressure condition (2-10 bar). I looked for some researcher work with nitrogen bottle with the loop so I asked is there another reliable way to work with different pressure system. knowing that there is pump to powering the fluid. I hope to hear from you and thanks for response.
Could you just use an external tank charged with nitrogen and a tubing to connect it to the system,. The water inlet placed under the water surface in the main tank, to make sure the water in the closed loop does not mix in with the gas?