One small bathroom in a 1920s house. A cheap remodel was done what looks like about 20 years ago. We moved in recently and noticed water dripping through the ceiling below the bathroom after using the bath/shower. There appears to be a damaged gasket at the bath drain which I will replace. However, it seems that any water getting onto the bathroom floor is finding its way through and into the ceiling below, even small amounts when exiting/entering the shower.
I'm up to my eyeballs in other projects right now, and although I do plan on gutting this bathroom and starting new, that's likely not going to be for 2-3 years. In the meantime, I'm looking for a cheap and easy fix. Is there any kind of transparent sealer I can apply over the top of the existing vinyl to keep it watertight for the next few years?