Wow - that's amazing!

Turns out that the brown spots are most likely rust stains from rusted rebar that was hit when the fence installers were core drilling for the spigots ...

Thanks Dave - seeing what you've done has given me a much better idea of what the sort of work that I'll need to do. I especially liked your pictures ...

Hey Mitchell - thanks so much for replying! Regarding your point in whether my approach will be effective, I thought one purpose of fixing spalling co ...