8. What does a well-installed and well-maintained Hydraid
®
BioSand filter look like?
• Location – Inside a structure or home, on a flat level
surface, protected from the elements (dust and wind), birds,
animals, mosquitoes, and insects.
• Filtration Sand – Surface of the sand is flat and level at a
depth of about 5 cm (2 inches) below water level.
• Cover – Clean on the outside and inside. The lid fits well but
is not sealed.
• Diffuser Plate – Clean.
• Free from leaks – No drops of water or wet areas beneath
the filter.
9. What is the best way to use the filter?
• Use the filter daily but not continuously. Daily usage provides
nutrients to the biolayer and keeps the biological layer alive.
• Make sure that the water comes from the best source. If pos-
sible, always use the same source. If the source water is very
turbid, let it rest and allow the sediment to settle for 24 hours,
and then filter it by using a finely woven fabric that has been
doubled several times.
• Slowly pour water from a container through the Diffuser Plate
into the filter, but do not allow the sediment to follow. Repo-
sition the Filter Lid immediately after adding water.
• Make sure that the post-filtered water storage container is
clean. Do not use the same container to collect clean water
as the one being used to collect dirty water
• Add 2 drops of chlorine solution (5.25%) to each liter of
filtered water. For example, if the container holds 20 liters of
water, add 40 drops of chlorine.
• Keep the storage container covered.
• Perform Filter Maintenance periodically.
• Keep animals and children away from the Outlet Tube and
the filtered water.
10. Which water should I use?
The Hydraid
®
BioSand filter is suitable for filtering microbiologically
contaminated water from any source. It can treat water from
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