1. The water needs to be filtered only as required. As the safe storage of water in the household has been identified as a key risk area of disease prevention, this feature is extremely important.
2. The concrete plastic Biosand filter exists as a singular container, devoid of moving parts. Ensuring its successful operation lies well within the capabilities of any member of the household, including women and children. Operating the filter is very simple: remove the lid, pour a bucket of water into the filter, and immediately collect the treated water in a pail.
3. The concrete container is small, but extremely stable. Therefore, it can be placed anywhere in the home, in the location most convenient to the user.
4. The plastic piping is encased in concrete and is not easily damaged.

Maintenance
The biological layer typically takes one to two weeks to develop to maturity in a new filter. Removal efficiency and the subsequent effectiveness of the filter increases throughout this period.
Continued use of the filter causes the pore openings between the sand grains to become clogged with debris. As a result, the flow rate of water through the filter decreases. To clean the filter the surface of the sand must be agitated, thereby suspending captured material in the standing layer of water. The dirty water can then simply be removed using a small container. The process can be repeated as many times as necessary to regain the desired flow rate. After cleaning, a re-establishment of the biological layer takes place, quickly returning removal efficiency to its previous level.
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