| You guys are a lot more patient than me. I would slop some Thompson Water Seal on the concrete, let it dry, fill and leach it for a day or so, then drain and refill. The water seal will not last for a year, but it will go away very slowly and there will not be a pH swing or toxicity.
Exposed concrete is never completely cured. Acids produced by nitrification and organic decay will slowly dissolve the concrete forever. What we call "cured" concrete is just a surface which is dissolving much more slowly than it was initially.
-st ev eh |