Can Quikrete Water-Stop be used to patch a hole in a parged basement wall?
Background: I repaired a drainage issue on the exterior of my 1920 home that was causing my basement to flood. The water had been getting in the basement through a hole that developed through the parging under the stairs. Since the exterior fix, relatively very little water gets through anymore, so I think it's time to patch the hole in the parging. I showed a pic of the wall to a guy at Home Depot, assuming he would know the right stuff for me to get. He was the one who recommended the "Quikrete Water-stop", but I was skeptical because upon looking at the pic of my basement I showed him, he admitted he didn't know what the surface was, which I identified later as "parging".
BTW, I've attached a pic of the parging. This doesn't show the hole, as it's too dark under the stairs to get a good pic. I only provide this because I'm wholly ignorant about parging and I don't know if there are different types of it. So I figured it would be a good idea to supply it in case it's relevant to answering the question.
Also - I had a company that seals basements give me an estimate for re-sealing the wall under the stairs and they quoted $950. So I thought I'd see about doing it myself. It's a pretty small area.