ponds, lakes, cisterns, reservoirs, rivers, streams, shallow and
deep wells. It can treat rain water, spring water, water from piped
systems, delivered water and grey water. Always use the clean-
est water source possible and, if possible, try to always use the
same water source.
11. What are the most common errors made by new users of
the Hydraid
®
BioSand Water Filter?
•
Some new users do not use clean storage containers to collect
the water from the filter or use the same container they used to
collect the source water, causing recontamination of the water.
•
Some new users perform the biological layer maintenance
procedure too frequently. Too frequent biological layer
maintenance reduces the effectiveness of the water
filtration system.
•
Some new users want to add a tap to the Outlet Tube, which
keeps the water level too high and prevents oxygen from
reaching the biological layer.
•
Some new users add chlorine to the water before filtering
instead of adding it to the post-filtered, clean water. The
addition of chlorine directly into the filter can kill the biological
layer and will reduce the effectiveness of the filter.
•
Some new users do not allow the dirt in the source water to
settle before pouring the water into the filter.
•
Some new users place the filter outside the home instead
of inside the home. This increases the possibility of
recontamination of the filtered water.
•
Some new users do not use the filtered water to bathe, to
wash their clothes, to cook, and to clean their food preparation
surfaces and utensils. They only use it for drinking.
•
Some new users use a large spoon or jar to remove filtered water
from the storage container. This can cause recontamination.
Filtered, clean water must be poured from the storage
container into a receptacle for use.
12. How can the biological layer be seen?
The biological layer is not visible. At most, a little discoloration
may be noted on the surface of the sand.
18
Summary of Contents for BioSand
Page 2: ......