Northe wrote:
I have a birdbath -- definitely not concrete or fiberglass, probably
some kind of plaster. Apparently there was some sort of coating on the
inside of the bowl and after a freezing night or two the coating spalled
and the bowl developed some fine cracks and now leaks. I'm looking for
some sort of coating I can use inside the bowl to stop the leaking. One
of the local hardware stores recommended the water-based latex form of
Drylok masonry waterproofer -- I wish it was available in less than a
gallon-sized can. Someone else recommended some kind of bitumen paint --
but didn't know the brand or where it was available. Obviously I don't
want anything that'd be toxic for the birds.

Anyone had experience with sealing a birdbath, fountain or, perhaps,
something like a small koi pond?

Thanks in advance!

Northe

This is not a creative use for your time. Head for a garden shop and
buy a more robust birdbath, or search the web for many of the online
choices. Good luck.

Joe
Green Valley, AZ