We are reworking our aqua hot drain valves. Does anyone know what type of caulk is used to fill around the drain lines where they pass through the wall and floor? It doesn't seem to be silicone - it is very fluffy and still bright white after 19 years.
I don't know what you have but silicone will work well.
3M 4000UV or 3M 5200.
Thank you!! Douglas says it must not be the 5200 because he was able to remove it pretty easily. Wish you were still here so we could have borrowed your 4000. ;D