
I had a slow leak in mine too. I dried out the birdbath for a couple days and then wiped it out real good. I bought a caulking size tube of GE Silicone clear caulking and with my caulking gun squirted a bunch out into the birdbath bowl. Using rubber gloves on my hand I smoothed the caulking out so I got a nice layer all around the bowl and made sure it ran all the way up the sides to the waters edge. I let that dry for a couple days in the sun.Once dry it forms a rubbery layer and has not harmed any birds or squirrels that also drink from the birdbaths we have.