"Oz" wrote in message
...
David Hartley writes

The water pressure isn't high enough for this. The cattle nearly empty
the tank
at times. However what should work would be a mesh fitted with floats so
that
it's always a couple of inches below the surface.

We put some old pallets to float in the trough. The bird should be able
to get onto them.

Thinx: probably time we put some more in. I expect the old ones have
become waterlogged and sunk.


And all the preservatives will have leached out, too :-)