A concrete repair mortar would work just fine. I'm sure Quickrete makes a product, but I'm not familiar with any of theirs. We usually recommend Sika brand stuff, but I don't know if you can get that just anywhere.
Get something latex modified if possible. That is heavy duty stuff and should do fine underwater.
(novice chiming in) would adding a layer of concrete sealant over the entire thing help longevity since this has some value to them?
(novice chiming in) would adding a layer of concrete sealant over the entire thing help longevity since this has some value to them?
Wife has a old, large concrete Birdbath. The bottom of the bowl is showing spalling & pitting, anyway that you can DIY seal it up to prevent further damage?
I know we could replace it, but this one has some sentimental attachments to the Mrs.