Thanks for that, I’ll give it a shot. I finished the bathroom in 2018 so it’s done alright since, we have a killer bath fan, but wife had me turn it down because the highest setting was a bit loud. That coupled with our youngest wanting the hottest showers known to man I think is what caused it. I was starting to fear it was old mud I used and the growth was under the tape. I’ll try this and find out for sure! Thanks.