On Tue, 22 Sep 2009 09:33:22 +0100, dennis@home wrote:

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

So fit a lid that complies with the regulations.

No proper lids on the tanks here when we moved in. All manner of
stuff in the bottoms from brick dust and rocks to dead centipeeds
beetles and a mouse. Didn't do us any harm and all the water we use
goes through those tanks as they were installed before mains water
arrived and the incoming supply was a bit erratic.

--
Cheers
Dave.