Chemistry

Water (continued)


How to draw water from artesian wells, common wells and sources? Water flows from artesian wells and fountains and is drawn with rope, bucket or pulley systems from ordinary wells.

The underground water table is the basis of the set of communicating vessels. So the water that is there should always be at the same level. Thus, it is impossible to pour water from the common wells.

The artesian well may be located in a lower part of nature's communicating vessel system. If the source is at a higher point, water gushes from the well trying to reach the source level.

If the source is part of the communicating vessels and is in the highest part then it flows with less intensity water. This is because the pressure exerted by the water decreases as the depth decreases.

The deepest artesian wells (approximately 100m deep) should be drilled with special equipment such as the drill rig. The water in these wells comes from deep water that lies between the rocks. The water is clean and may contain mineral salts and some gases.

It is a source of thermal water that can launch strong jets of water and hot steam. They are formed in regions where there are active volcanoes. Geysers appear due to the proximity of volcanic lava and the underground water table.

House water tanks or reservoirs operate according to the communicating vessel system. They should always be in the highest place. The water that comes to our house comes from another reservoir that must also be at the highest point of the supplying region.

Pascal Principle

"The pressure exerted at the point of a liquid contained in a sealed container is fully transmitted to all points of that liquid."

“We can observe this principle in our daily lives, on automotive brakes and on hydraulic lifts.”