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C. Street
2025-08-11 17:23:26
Easy to use, doesn't take a lot, fragrance free, worked so fast to clean tough stains and grime. Wiped it on and rinsed it off, my hot tub was so clean and bright. Best product I have ever used to clean my hot tub.
blueridgegirl
2025-07-16 16:19:33
Our 19-year-old Sundance hot tub is still going strong (most of the parts have been replaced at least once). And even the shell can be brought back to new. But the water lines on the inside of the tub take a lot of scrubbing to remove and that's no fun. This cleaner made the job much, much easier. Not toxic so you don't have to drain the tub first, either. Great value compared to the specialty stores.
Tallen
2025-06-13 16:50:31
This spray works good for general cleaning. It does help cut through any much and grime buildup, but I can't say it does any better than a vinegar mix BUT, it does leave a nice shine. It doesn't take much to get the job dome so it should last at least one season. As usual, store it inside in a warm area over the winter or it will freeze and the sprayer will no longer function.
Jennifer
2025-06-08 16:28:12
Hot Tub safe and effective. What more could I ask for? Nice size bottle for the price making it a good value Hot Tub hygiene is one of my high priorities. Therefore I find this to be a win.
SavyShoppingNurse
2025-03-14 18:31:01
This bio Ouster hot tub cleaner works super fast. I have hard water here so all when the water drips dry it leave a spot. I tried it first on the cover, it took off the oxidized coating, and remained fairly shiny after it dried. I had so many stains where we get in and out of the hot tub. I sprayed and it quickly wiped them off. I did a kinda half way job on the step, just cuz it was getting cold outside and I wanted a comparison between steps. It took off most of the deposits and it looks SOOO much better. If I would have taken a bit more time I coulda had it good as new. I can tell this is something I would use again because it was so easy and effective. I don't know how this stuff works so good but it does!
Meredith Holt
2025-02-28 11:22:35
This cleaner is really nice. Our hot tub is kept inside so it doesn't get as dirty but I was able to get our hot tub nice and clean. I did not have to scrub too hard but it was nice to have a clean hot tub again this was very easy to clean and easy to use.
A Reviewer
2025-01-28 17:20:39
My tub generally stays pretty clean except for the crud that accumulates on the filter ring, that floats in the spa. Over time, especially when we're not using the spa as much, a ring of grime/calcium builds up on it. It used to take a lot of careful cleaning with a rag and baking-soda/vinegar mix. This Bio Ouster cleaner is so good I just spray it on, let it sit for a minute, then give it a (firm) wipe off. No more elbow grease needed! I've also liked that it hasn't (yet) had any impact on my chemical levels!!
H. S.
2025-01-20 18:38:19
I don't have a hot tub, but I do have an old acrylic shower/tub combo that has a lot of mystery stains. This has actually done a pretty great job of making those scuzzy soap/body oil/whatever else stains a lot easier to get out. I've also used it to clean stains on some linoleum with good results. The smell isn't overwhelming, either, which is great. I think this would be really worthwhile to own if you had a hot tub or jacuzzi and could use it on your normal shower/tubs.
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