Some Water Basics and Reverse Osmosis Water Filter

Water is generally classified into two main group namely surface water and ground water. Surface water are those water that can be found in rivers, lakes or other surface impoundment. This type of water does not have high mineral content and is often called "soft water".

Yet surface water is constantly exposed to many contaminants that has the potential to harm humans. These include but are not limited to chemicals, animal and human wastes, insecticides, algae, industrial wastes and other organic contaminants.

Even water from natural mountain springs could contain coliform bacteria which come from feces of wild animals. It is therefore necessary to boil the water first or have it undergo a sort of water filters before drinking.

Ground water on the other hand are those that are trapped beneath the ground. This could be because of rain seeping underground, rivers that disappear beneath the earth or melting snows are just some of the various ways to have ground water.

Because ground water generally comes from surface water its contaminants are similar to those found in surface water. Plus, add the dissolved minerals such as calcium and magnesium in high concentration and this may now be classified as "hard water".

This is especially true in areas in the rest of the world where rock such as lime stones, gypsum, fluorspar, magnetite, pyrite and magnesite mix with ground water causing it to have a very high calcium content.

Because of the impurities found in water people nowadays utilize household water filters in their homes to make sure that the water they are drinking is safe. These impurities may include physical impurities, chemical impurities and biological impurities. These impurities may be organic inorganic and these must be removed from the water to make the water potable.

Fridge water filters and reverse osmosis water filter also makes our drinking water potable. Potable water means that the water is free from microorganisms or disease-producing bacteria. Aside from this the water should also not possess undesirable taste, odor, color, levels of radio activity, turbidity and chemicals. The water should also pass the tests conducted by the government or authorities.

Water filters treat water so that pathogenic microorganisms, undesirable tastes and odor, turbidity, dissolved minerals and other harmful organisms are removed.

Reverse osmosis is a pressure driven process in which a semi permeable membrane is used to retain ions and other constituents as pressure is applied. The operating pressure in order for this process to be effective is 400 – 650 psi. Reverse osmosis water filter does this kind of stuff to the water.

In desalination, reverse osmosis pressure is applied to as high as 1500 lb/in2 to push fresh water through the membranes while leaving the salt behind. This makes salt water potable and ready for drinking use. This process is being implemented in areas where there is a limited supply of either surface or ground water.

Due to the different characteristics of surface water ad ground water it is important for us to know the sources of our water. Of the 326 million cubic miles of water on earth, only about 3% of it is fresh water and ¾ of that is frozen. Only ½ of 1% of all water is underground; about 1/50th of 1% of all water is found in lakes and streams.

And with that limited fresh water to use for human consumption we still pollute and contaminate our limited sources of water. Thus it is no wonder why many people today utilize caravan water filter to make their drinking water safe.

Water is important in our lives without it we would die. The average human is about 70% water. We can only survive for five days or less without water. Thus if we continue our unabated destruction and pollution of the sources of our water it is jus but a matter of time before humans will no longer walk the face of the earth.

"Is our drinking water safe?" is a concern much truer today than yesterday. Because of rapid urban development and industrialization most sources of water are being polluted. One way to clean that is thru reverse osmosis water filter.