We are not so far away from building cities under the Water. We can think of the infrastructure that will be required in order to maintain human life under the Deep Ocean. Repairing plumbing issues will be very different from land cities.
Plumbers will have to deal with the water above the town as they try to fix regular problems. Pipelines will be different because of the connections will drive residuals in an upper direction instead of going down. The plumbing supplies will need to be adapted to work there.
Human beings need oxygen which makes us think that submarine places will be constructed inside big empty half spheres under the Ocean. The bubbles might be of a glass material.
The shape of the big half spheres will very probably be similar t a parabola upside down due to this shape has the condition of being the most resistant to external forces. Any other shape constructed with the same type of material will have less force to deal with the millions of tons of water above them.
Of course there is still a big amoun of problems to be solved before we can think of driving people to live under the deep water for their entire life. We need also to think of how to use plumbing fixtures.
Several common things mightwill need to be redesigned to be used under deep water conditions. Not only will the water be part of the new conditions but also the incredible pressure that generates to be several kilometers under it. For example, we can have a transportation structure designed as an elevator that takes people to a ship or a plane’s base.
Submarines will become very common; there will be a good variety of models and sizes. There will be under the sea chips for one person, for two and familiar ones. There will be also transportation companies with huge submarines traveling from one city to another under the water.
There will be also working places that will provide energy and products to be biught by submarine towns habitants. It is not easy to think of which coming inventions will be brought to life in order to make a better usage of the resources under the sea.
Disposition of trash and remains produced by people from daily activities will be required. This is going to be quite a challenge for government. It is hard to justify the expenses of public income in duties that are not easily seen such as buildings and roads. I think the person who has the most popularity and cleverness to involve people to accept and support these type of actions will have more opportunity to rule one of those towns. If no disposal is done in a timely manner the shade of pollution threat will appear.
Fixing plumbery problems under the deep water will be one of the situations that will need new ways of being solved. I do not think we will have towns to live under the ocean within a few centuries from now but it is a very exciting concept. The technology developed by human beings until today will need to be reinforced with a good amount of imagination in order to develop foundations resistant enough to keep life under the seas.