Every now and then, one or more of my clay pots will get covered with white, powdery mold and something like bleach is the only (simple) thing that will get rid of it. If I just clean it with soap and water, the mold always returns quite quickly.
Compared to stuff like muriatic acid, CLR usage is a piece of cake. You just have to determine what dilution works. You would want to use the weakest solution possible.
You are so right Sue. Never mix bleach with anything else, other than plain water. If you do so, you will be in for a nasty result. Ask me how I know.
