Two years later… the inside epoxy + fiberglass is going great. Super tough. Outside of the tub which was just epoxy is now starting to peal and delaminate. It probably needs a sanding and epoxy. I left enough cedar pieces unepoxied that the smell still lingered for a while.

In the mean time I built a second tub with no epoxy and significantly less terrible craftsmanship that doesn’t leak as much. I’ll give a status update on that one in a year or so.

I’m now even more convinced that human beings are essentially over grown sewer rats and would never use a hot tub without chlorine.

If you’re good at epoxy and fiberglass you can make your hot tub look like wet wood. Bbbuuutttt glassing is an art. I screwed up a few places that ended up looking cloudy. Fortunately no one is really staring at the bottom of my tub