Translations:Water - Biosand Filter/69/en

An installed filter (with filter media) can weigh up to 350lb or 160kg. Once installed, the filters should never be moved. The stabilization of the sand helps to eliminate the pathogens and the sand can be disturbed in moving the filter. The concrete filter box weighs about 150lb or 70kg. If the filter must be moved, the sand and the gravel must be taken out, washed and reinstalled in the new filter location.