I have a large jacuzzi tub with jets in my house that I rent out short term on AirBnB. The jacuzzi is on the second floor, directly over a first floor bedroom and on numerous occasions people have managed to flood the bedroom ceiling. I did discover that I had a leak in one of the pump fixtures which I have fixed, but the problem would occasionally return.
The last time this happened, I pressed for more info from the guests and figured out that they turned on the jets before the jacuzzi was completely full - resulting in them shooting water on the wooden surround. Naturally, I added a disclaimer about this in my house rules, but unfortunately they still manage to make it leak (I'm guessing from splashing while moving around in the jacuzzi).
Right now the jacuzzi is surrounded on 3 sides by wood on the walls and a ~1-2in. horizontal wood piece that the rim of the tub rests on. I used some silicone to seal between the tub rim and the horizontal wood all around, but it seems people are still managing to get a significant amount of water on the (carpeted) floor or between the tub and the wall.
The jacuzzi is sitting on just plywood, but the rear 1/3 or so is just exposed joists. Is there supposed to be some sort of water barrier under it?
Short of tearing everything out - What is the best way to waterproof around the whole tub and setup some kind of drainage so the water doesnt end up messing up the floor/ceiling every time? I was thinking about installing one of those micro channel / train drains around the perimiter and on the floor directly in front of the tub, but I'm not sure how I would get enough access on the 3 sides that are up against walls.
Any help/direction is really appreciated!