That the cleaning medium

It is important when selecting filters to focus on their performance. It is necessary that the water that will pass through the device completely manage to be cleaned. It is also important that the cleaning medium is made of relevant materials, otherwise not all pollution will be delayed in it. For example, water purification from iron can be carried out by various filters with loading from various materials. The fact is that iron can be in liquids in several forms and a filter that removes for example trivalent iron, will not cope with iron in a two -glove form.