Carbon sand filter / Swimming pool water circulation filter prices of water purifying machines

What is the carbon filter and sand filter?                                                                  

Carbon filter:

Carbon filter,also known as pressure-type filter. It is an important part of yhe pre-pure water pretreatment, water purification system. Its interior featured a number of specifications quartz

sand filter, at a certain pressure, so that liquid trapped by the filter to remove impurities, so as

to achieve the purpose of filtering.

Sand filter:

Sand filter use this simple but very effective method to give you the filtration you need to clean

your water. Water enters sand filter and is channeled to the top of the filter and falls on a bed of

quartz sand. Filtered water then exits through laterals at the bottom of the filter and the trapped

dirt in the sand is removed via periodic backwashing and infrequent sand replacement. This

sand filter  is easy to install and very simple to maintain.