On Mon, 21 Sep 2009 16:20:33 -0700 (PDT), Tommy
wrote:


Dead rats, cats, birds, squirrels, cockroaches, in storage tanks in
attics often give people the heebie jeebies about their water supply.

Fitting a water filter (of any sort) on the incoming feed would only
make the problem of any decomposing wildlife in the attic tank worse
as it will remove some of the chlorine from the water before it gets
to the tank.

Perhaps a webcam looking into the attic tank so it can be inspected
for vermin before each shower would be cheaper? (or of course
simpler, cheaper and more reliable - fit a lid on the tank).

Incidentally I notice the device quoted in the original post has a
maximum capacity of only 50 litres a day and must be fed by water
which is already drinkable. This does rather bring into question its
ability to filter anything of significance.