

Help clean slippery film
So I’ve tried a few things and nothing’s really working so far. I don’t have dirty water. My filter works really well, but just below the water line when you touch the side of the tub it has a slippery little texture to it like the tiniest little coating. Whereas above the waterline, there’s no slippery detected to the texture of the tub.
I tried this spa guard pictured above, natural spa enzyme product but even putting in the small cap full amounts recommended for my tub which is only 100 gallons — or putting in a lot more. It doesn’t get rid of the problem at all.
I don’t need to clear cloudy water or anything else. I just want to get rid of that slippery texture on the sides Just a tiny amount of slippery texture that gets on the sides.
What can I buy? That’s already pre-mixed that I can just pour to kill whatever is causing that? Thanks.